Depends on what you are using it for.
Is the psr2000 new ...and is it even exchange ...or do you have to add money?
Ebay is selling the psr2000 brand new for around 800-900 dollars (at least they were the last month or so).
Used psr9000 is probably 1699-1899 I would think ... haven't seen one on Ebay the last few months.
Do you gig everynight in different places or do you use it mostly for studio work with occassional gig?
Do you want or need the Sampler feature in psr9000?
Do you want hard drive option that psr9000 has?
Did you download lastest upgrades for psr9000?
Did you play the psr2000 for 3 or 4 hours in store to see if you like the action?
Some folks think the psr2000 has cheap action and mid-level instrument. Others love it and live with it's limitations.
The psr9000 is pro gear (it sold new for 3800 dollars a few years ago)
No upgradeable os in psr2000.
You might want to wait and trade it for the new Tyro's when it comes out this fall.
How much did you pay for your used psr9000?
Go to yahoo's psr sytles forum and song forum and join for free... they have lot's of style downloads and lots of folks that own these instuments ... 2500 members on that forum.
Read the REVIEWS online about both instruments ... I found many when I did search a few months ago.
p.s. Ebay has a used psr2000 selling right now at 650 dollars ... as of this writing. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=895829986
P.S. I would think you would get more in trade selling a psr9000 then a psr2000 ...if after a few months you go to trade or sell a psr2000. Maybe others can comment on this too.
[This message has been edited by rgtaa (edited 07-27-2002).]