Hi Tim,
sometimes it's the novelty of a new instrument, especially if you're a hobbyist.

I decided to give music hobby up so I sold my baby grand & all my keyboards back in 1999 including my fairly new kn5000.

Two years down the track a friend got me interested in the keyboards again. At the time the Va7 had me intrigued because of it's variphrase sampler. I wasn't particularly interested in the kn6's as they were fairly similar to the kn5.

Instead of the va7 I actually ended up with a 9000pro. On reading the manual it seemed to have a lot of the features the kn's did ( mainly to do with style creation functions & the sequencer). Wasn't till weeks down the track, that I started to realize that it didn't do everything that I'd thought it could do. Even though it was a great machine, the gloss started to wear off for me, a few weeks after purchase. I kept it for about 2 years.

Currently your psr's the flavour of the month , and you may regret selling your kn7 on the spur of the moment. Like me, you may find the psr's have shortfalls in some areas.

If you're still as happy with it a few weeks or months down the track, then that's terrific.
My bank balance would be healthier if I could have found a cheaper keyboard than my kn7, but they just haven't made one yet that gives me all the features that my kn7 does.

best wishes
Rikki