Upgrade to Optoma HD-80 1080p from PE Benq 7700 (720p)???

Is there much difference???? I will be viewing on a 84 inch white screen. A little closer than average. Thanks to anyone who has seen both in action!!!!

I like my benq7700, but I think that my PS3 Blu-ray films can even look better, without breaking the bank.

You may want to look into an ND filter for it at that screen size. I mean, I think it could do 140" 16:9 screen, 1.0 gain.

When I had an HD80 in my theater, it was bright, I mean way bright compared to a Sony VW50, a Mitsu HC5000, and a Panny AE1000U.... Almost shockingly brighter.