Well, LCD projection units and DLP BOTH have bulbs to be replaced with life expectancy of approximately 6000 hours. Of course the SXRD unit is actually an LCOS, not LCD projection and the replacement bulb is a bit higher in price than the previously mentioned items and has the same approximate life span. Also, DLP can offer true 1080P. True LCDs offer 1080p but, not the SONY LCD projection units, although the SXRD LCOS units do offer 1080p. IMO, the DLP offers better performance than the LCD projection units.