greg32, you simply cannot compare miniscule 76cm (30inch) CRT to large screen LCD or Plasma. It's not aple to aple comparison. I'm not talking about tech differences but as simple as size differences. Try to use magnifying glass (2x magnification factor, 20cm diameter, maybe to make comparison easier) to simulate apple to apple comparison to 60 inch LCD or plasma. Watch from approx same distance as you watch the big screen LCD or CRT in the showroom. I bet you can no longer said that CRT is still better than current latest generation of LCD (XBR) or Plasma (Pana or Kuro). In this size, you will see CRT scan line all over the place, worst screen door effect ever, etc.
There is other factor that make the difference more pronounced. All display, especially digital based such as LCD or Plasma are best when displaying the content matched with their native screen resolution. Other than native res, they need to scale the source to match the screen resolution, and this introduce noise, false contouring, resolution drop, etc etc. BlueRay and HD-DVD are 1080P (1920x1080), and this match exactly with current Full HD screen.