Yes, CRT projectors (especially the ones with bigger 8"-9" guns), once properly calibrated, do produce better pictures than any digital projectors available today. However, the drawbacks are daunting...
(1) They are HUGE and HEAVY. If you ever want to ceiling-mount it, you first need a major structural reinforcement on the ceiling joists themselves. If you table-mount it, it will surely dominate the entire room, sitting right in the middle of the room.
(2) The projected image is several fold dimmer than digital projectors. This means that you need a perfectly light-controlled room, preferably all walls/ceilings painted in dark colors.
(3) Cost of ownership is very high -- CRTs don't last forever, plus the cost for regular calibrations/maintenance (see below).
(4) Last but not least, calibrating a CRT projector is a full-time job by itself. Forget about possibly doing it by yourself, unless you want to get an ISF certificate. And you have to repeat it regularly. Incidentally, un-calibrated or poorly calibrated CRT projector is a disaster in picture quality. Never expect a decent performance out-of-box, whether new or used.
