Joining this thread kinda late, but seeing as I'm sat here on OCuK in 720p@130" on my wall... 
Had this projector since 2005, its a hitachi PJTX200 which has survived 4 house moves and gets used 2 or 3 times a week, often for many hours at a time.
I'm on my 2nd bulb, the current one costing £150 from the bay. If I was buying one now, I'd look for 1080p, but I'd also check difference in picture between DLP and LCD - when I was buying I found the DLP rainbox effect was annoying - have they solved that now?
Unlike a telly, placement and lighting can be an issue so think about those before you buy.
Just make sure your projector stays powered on long enough after use for the fan to cool the bulb down properly and it should give you many hours of fun.

Had this projector since 2005, its a hitachi PJTX200 which has survived 4 house moves and gets used 2 or 3 times a week, often for many hours at a time.
I'm on my 2nd bulb, the current one costing £150 from the bay. If I was buying one now, I'd look for 1080p, but I'd also check difference in picture between DLP and LCD - when I was buying I found the DLP rainbox effect was annoying - have they solved that now?
Unlike a telly, placement and lighting can be an issue so think about those before you buy.
Just make sure your projector stays powered on long enough after use for the fan to cool the bulb down properly and it should give you many hours of fun.