I should mention, I will not bother buying a replacement bulb...about $300 (overseas) or P35000 locally
We only watch on the large 123" screen for movies usually not DVD TV series or cable TV.
You should look at LED Projectors (not LCD, not DLP), they last 10,000-20,000 hours, but resolution is only 800x600 and cost about less than $1000. Prices will drop, and technology will improve.
By the time my projector lamp burns out in 4 years (only have about 800 hours on it after 18 months of use), I'll probably buy an LED Projector and sell the old one.