I bought a CRT last year. It was a great investment. I got a CRT because in addition to being affordable, the technology holds up better than LCD and Plasma, it's not stuck in a native resolution and the blacks are actually black. If you're in the market and don't have a lot of cash, I'd recommend a CRT. If not, wait out for affordable SEDs.
Wait another year or two, unless you've got money to burn...
The 30" Samsung 16:9 SlimFit CRT will run you about $750 at most places like Circuit City. It looks beautiful, and isn't as deep and heavy as most CRTs (fooled a few of my friends into thinking it was a LCD or plasma at first):
(http://www.electronicexpress.com/images/products/large/8242.jpg)
The drawback is that the earlier models had some slight geometry issues. Mine bends slightly in the top center of the screen, although I never notice it while playing. Some people have been able to fix this through the service menu. This problem might have been fixed with the newer models, although I haven't been following it too closely. But it looks fantastic, and is definitely takes up less space and is much lighter than most CRTs. My 4:3 CRT was the first one I bought back in 2002 or 2003? It was a floor model at Best Buy. I talked them down to a little over $500 if I remember right.
I have no idea what you're talking about.
The screen-door effect or fixed-pattern noise (FPN) is a visual artifact of the projection technology use in digital projectors, where the fine lines separating the projector's pixels become visible in the projected image. This results in an image that appears as if viewed through a screen door. It most commonly appears as a grid (hence the name). or sometimes as a hexagonal structure.