it was a much appreciated projector back when it was released, but I don't think it's worth buying now, unless you really can't spend more than some $100. SXRD (and any LCD-based) projectors that old don't age well. Either the SXRD panels or the polarizer filters are likely worn out; not to mention there is an ongoing discussion right on this forum about the longevity of SXRD panels. If you want to buy a very old projector, go with DLP projectors. I mean if you can't spend more than a hundred bucks or so. Also, this projector isn't nearly as bright as newer models, so, even assuming it's still in good working order, it won't be good for a screen larger than 100".
It may be easier to help you if you tell us how much you can spend, what will the projector be used for, what kind of room is it (dedicated dark room, or white living room), screen size, projector throw distance, etc.