Hi Frank,
they were spread over a period of nearly 20 years, I really only had a couple of keyboards at a time the latest synth or samplers.
I never kept anything longer than 6 months
( except for my kn's).
Early 90's I helped out in a music store taking phone calls on midi/keyboard related problems backing up the keyboard salesman ( who was a guitarist not a keyboardist) and doing one on one tutorials on workstations, keyboards, etc. Boss wouldn't let me be a salesperson as a 40 year old mother didn't quite fit the young "ROCK" image of the store. ( haa haa).. Anyway, I couldn't complain. I was able to buy for just over cost , lost little on resale met some interesting musicians, beat sitting at home watching "the soapies".
Never became much of a musician, ( I think you really have to be born one??) but it was great being able to help musicians sort out their gear.
We take it a bit for granted nowadays, some workstations & top of the line keyboards can pretty much do the lot. Sequencing, sampling, loads polyphony, great sounds etc

Having been involved with synths prior to midi, and having gone thru the various stages, I suppose some of excitement has gone out of it for me. Computers & software arrangers is a bit of a new challenge, but maybe I'm just past it. haa haa.

best wishes
Rikki