I purchase this projector refurbish off woot.com for $ 650 . great deal , right ? I then build a entire home theater around this unit , purchase a 5.1 surround receiver and speaker system , electric projector screen , mount hardware , speaker wire , etc. . by the time all equipment come in and I be ready to set up the system it be about 45 day later . it work great for about one week , then the lamp start shut off . I call and they say it be the lamp that need to be replace and it would cost $ 250 to do so , because the lamp be only guarantee for 30 day -lrb- the rest of the projector 90 day -rrb- . I only put about 30 hour of time on the lamp and it will cost I $ 250 more dollar ? that put the cost of the projector over what it would cost to buy new in only one week 's time . I be stick return the projector back to woot for the refund and look for a better company that make hd projector for my theater . my sister be also on she 3rd optoma projector because of shoddy circuitry . she be send she 's back before to find that it would cost she $ 400 for out of warrantee service . you may have better luck than I , but buy at you own risk because Optoma do not stand behind they product and will overcharge you for the repair .