CMOS image sensors have very much caught up to CCDs in image quality, have a significant power advantage and support higher frame rates. This might explain why CCD use in high-end digital SLRs will be moving from 12% today to 1% by 2014.
I'm not sure that CMOS has the big cost advantage that one might assume. CMOS image sensors aren't built in standard logic processes, where huge volume means low cost.
I totally agree, goafrit. It's another case of volume trumping quality as it is in other consumer electronics devices. Yet astronomy requires CCD quality: http://188.8.131.52:8080/CE2release/cesMain.jsp
this is image of the Moon is taken from a Chinese satellite: http://www.space-travel.com/reports/China_publishes_high_resolution_full_moon_map_999.html