The highest resolution of the Epson EB-Z11005 is XGA (1024x768). That's 23% less resolution than a WXGA (1280x800) data projector, which is the most common resolution.
An XGA (1024x768) native projector resolution is actually the worst resolution amongst all projectors that have been on the market for more than a year.
Amongst comparable types of projector the best resolution is 1080p (1920x1080).
We think you might also be interested in some of the alternative data projectors that have a resolution of XGA (1024x768) currently available including cheaper projectors such as the Epson EB-Z9870.