I have a Yamaha P-250 that I would like to sell because it is too big. Problem is I have no idea about which price to ask as I could not find other P-250s for sale.
This one is from 2005 if I remember correctly. It works normally. The built-in sounds are quite dated when comparing with the top recent VSTs (Ivory, Galaxy, Scarbee MK1, etc), but they are still very useable (when playing at concerts, noone told me "your piano sounds bad", on the contrary people like it). The GHE keyboard is still great nowadays and I may have some problems finding a proper replacement to it. One of the best features of the P-250 is the big flat top that allows to install other keyboards, computers, desktop synths, mixers, etc.
Maybe 500-700€ is correct, but I really have no idea. Would you dare to ask for as much as 1000€? Under 500€ I prefer keeping it. Please tell me if I am completely wrong...