Need some advice & info on first projector purchase: The projector I'm considering buying (Runco CL-510) has a relatively short rated lamp life - 1000 hours. Most of the other projectors I see are rated anywhere from 2000-3000 hours. Would this alone turn most of you off on this projector? Do the ones rated 2000-3000 hours actually achieve this, or is it marketing hype; as I see most of them only warranty the lamp for 6 months or 1000 hours (same as Runco does.) Thanks for any reponses!