I know that the 5020 UB lists for about 2600. Am I correct that the only differences are the color of the unit, the extra bulb and a mounting bracket and 1 extra year of warranty with the 6020?
The pricing is close but to extend a year of the warranty to 3 years for a 5020 is $279.95, it costs $419 to add a year to the 6020 because the overall time (4 year) is longer and the older things get the more likely a problem will occur.
However, the cable cover for the 5020 is $100 and not $49. I guess it costs more to make white If your ceiling mounting the projector the cable cover is a nice addition to clean up an installation. I'm not sure it is worth $100 though but $49 is not bad.