am about to buy my first projector for casual film watching via dvd and iplayer watching via my laptop. budget wise i was looking at £500-£800. am not fussy about having the latest thing and don't need 3D. i'd prefer to buy second hand because of depreciation. i've hunted the forum but couldn't see this question asked, so forgive me if i've missed it somewhere, but has technology moved on significantly enough for a brand new £800 projector to be leaps and bounds ahead of a £3k projector from 3 or 4 years ago that can now be had for the same price? for example there's a used sim2 domino d35 on ebay that seems like a lot of projector for the price but there are well reviewed infocus models for similar money. my knowledge of the technology though is too limited to know how to make this kind of decision. in case it's relevant, i'm open to DLP or LCD. it's for a 16ft throw and needs an hdmi input. thanks in advance for any help.