I'm looking to spend no more than 4K. I would like to see 80 inches on a 16:9 screen (measured diagonally). D direct view TV would take over regular TV and screen would be for occasional TV only (like Football and the Superbowl) At this price point do I have to live with scan lines? Is considering a used projector out of the question? (as in...Would I have to spend a lot to refurbish or repair a used purchase?) Also..a general question...of care and maintenance...I am aware of the additional setup and recalibration needed by tube projectors, but I'm assuming that at my price point, I'll only have to worry about LCD and DLP. what are the issues associated with LCD and DLP as far as bulb life, cost of same and interval of replacement? I ask because what's the use of limiting my price to 4K if it means that I'll be purchasing a projector that needs a $750 bulb every year.... That would be the push I may need to spend a LITTLE more (say 5 or 6)...if the design gave a longer bulb life, and made the cost of ownership less. TIA!