A while back -- maybe two years now -- I posted that I would like to get a "back-up" PSR-E433 in case I were to start gigging (which is still a pipe dream for me at this point) and needed a quick back-up board in case my main board stopped working at a gig. Finding a used PSR-E433 has been surprisingly difficult, as most have been located quite a distance from me, and often, the asking price is absurd for a six year old keyboard that had a street price of $250 to begin with. Well, now, there is one on Craigslist that is maybe three miles from me, and they're asking $150. That, to me, still seems high. Additionally, the reason that I previously mentioned why I was considering gigging (that I could lose my current job) did, indeed, come to pass, and I am currently making significantly less money right now, so even $150 is a stretch. I may keep an eye on it, and if it doesn't move after a week or two, maybe offer them $100 for it.
However, my other concern is that I really think that Yamaha is going to shake up their entire line of E-series keyboards next year. I have no actual inside information on this -- I'm just gleaning this from the fact that they never came out with the expected E273 and E373 keyboards this year (unless you count the E360 as a sort of E273), and I would think that they want to keep pace with the new Casios that were recently introduced. So, it may be worth it for me to hold off and see if it will be time for a whole new board, anyway.