I usually keep 'em about a year or so. Some lasted a little longer.
However, I consider Yamaha basically the same keyboard now as it was with the PSR2000, with minor upgrades on each model.
When arrangers first started, they improved quite dramatically between models and companies; not so much or so fast now.
I generally buy mine fairly cheap and sell 'em while I can still not lost much, if anything.
I've had E50 for about four or five years, but it's basically my backup now.
BTW, BK7m is quite remarkable once you set it up. Excellent sounds, including drums. I used Edirol controller and it has a program to help map the commands. You can do a lot with the controller than can not be done directly from the module.
DonM

Ditto, but I've had mine about five years - bought used and got the proverbial steal of a deal. Spalding and I are talking Pa1X here, folks. I still have my i30 even, but it's the Pa1XPro that's my daily workhorse.

technics kn6000 since about year 2000 ... just bought a Pa600 as a second board ...

I got mine from a cave man in 2000. It's as heavy as a Dinosaur. My i30 and I still don't know 25% of what it can do or how many sounds it has. I don't even sequence anymore. Hadn't played the sax in months. Too much work keeping up the chops. Just comp chords and sing all the great standards mostly along with some R&R and R&B.
Do I win anything?

Yay! You have won an all expenses paid, two weeks for two in Hawa . . .

Oh sorry, that was last week. You're a good guy, though, Boo.

I have had my Technics KN7000 for ten years. It never let me down, and I shall never sell it.

I, however, have had a slew of other I have kept from 6 months to 3 years.

Don

I'm using the BK7M with either an old Roland EP760 Piano or my Casio Privia just for the keyboards. I've never used a contoller and don't have any idea how to program one. My idea was to have an arranger with a decent keyboard which is why I didn't go for a BK5. I'm liking the BK7M more as I work with it. Sounds are great, most styles OK, I've added some from my G1000 and a collection of styles on CD. The biggest pain is the wheel you use to select things. I have a small studio in my garage that is not heated when I'm not there so when the unit is cold the wheel has a mind of its own. Turn it clockwise and it may move forward but then will decide it wants to go backwards !! I've even been warming it up with a hair dryer when I first go out there. The other real issue is the One Touch Settings. I like to have about three different voices for m RH . For EX. Piano to start, Sax for a solo, and then Piano strings or Brass for a finish. The One touches give you the option of having four, "IF" you can program them. As you do it they get "tangled" with the Part Settings which come on automatically as you choose a Style. Sometimes both sound, sometimes a LH part won't sound at all. I've spent hours trying to set up One Touchs for each Style and finally gave up. I'll just go with the Part Settings which give you two voices for the RH for now until I get all my styles done. Then I may go back and retry doing the One Touches. There's a lot to do with effects too, more than I understand right now. Why can't Roland make a DVD for programming their products? Two calls to them didn't give me much help. As for the One Touch problem the answer was "its a new feature which may still have bugs" You also cannot use the MI feature along with a RH sound. Its either on or off and cannot be combined. OK enough complaining, I still like the unit.

Got my first MS 60 Solton in 1995. It still is used every week. I got a back-up in 2000...at home. I have a Midjay I got from Don M and an SD-5, but, when it come time for an arranger, I still grab the MS-60. It's been dropped, rained on, knocked off the stand...I even forgot it and left it outside in the yard of a restaurant one time.


Still does what I need it to....17 years and still "cookin".


Russ

I guess about 8 years on the G70, then about 10 on the previous G1000. Then this last year I got a BK-7m, but don't use it for gigs yet. It is strictly for my KX-5 so far.

BTW, Bill, take a good look at those iPad BK controller apps. Seems like a lot of the data wheel/entry button stuff is easily bypassed on this.

Again, I seem to notice that those of us that fall in the 'player' category seem to be those that keep their kit the longest, and the 'entertainers' seem the keenest to keep changing up (or across!) all the time.

Well, this is one 'entertainer' who has held onto his boards for a long time - the kn1000 for 8 - 9 years, the kn6000 for close to 13 years and still gigging strong ...

I've just never had the 'need' for a new board since I got the kn6000, and just got the Pa600 more out of a 'desire' for something different, than a need - although, operating without a back-up kb was starting to worry me -
BTW, my oldest grandson (14 yrs) now has possession of the kn1000, and my oldest granddaughter (14+ years)now has possession of the RHODES ...