In an ideal world...I would like to have a big CRT for gaming. In fact, I did have a big CRT for gaming - specifically, the NEC/Mitsubishi 2141SB-BK (basically, their highest-end consumer 22" CRT that cost about $600). I loved it mainly for the high refresh rates (1600x1200 at 109Hz was unbelieveably smooth, and 2048x1536 was even usable at 85Hz). However, the clarity/focus just wasn't there. It was fine for games, but for just regular Windows use (lots of text)...it just wasn't that sharp. Geometry was decent, but convergence was an issue too - I just couldn't get it adjusted perfectly (even though NEC has very good software for the adjustments). The high resolutions (1600x1200 and up) just weren't usable for me in Windows - they were "OK" I guess, but when I spend $600 on a monitor I really want it to be more than just "acceptable, I guess" for something I was going to be using the monitor for hours a day on. 1600x1200 85Hz was noticeably a bit blurry - it seemed to sharpen up a little bit when lowering the refresh rate, but obviously that wasn't an option for normal use. So I called Dell and asked for a replacement, thinking that I just got a bad monitor or something - but nope, the replacement was exactly the same. I was really disappointed, because while it was really quite nice for gaming (where you don't have to read much fine text), it just wasn't there for text applications. I realize that the monitors had focus ports on the side, but I didn't have the right tool to use them, and after a week or two of messing with the monitors and settings (and using them on different video cards), I just sent them back for a refund.
So...I ordered a Dell 2005FPW LCD a few weeks later. While nothing (yet) seems to be "the perfect monitor", I'm very impressed with it (more so than the CRT obviously, since I ended up keeping this one). Text and geometry are absolutely perfect (using DVI of course), colors are every bit as bright and vibrant as the CRT. Black levels are not quite as good, but are acceptable; gaming at 60Hz(/60fps) is obviously not as smooth as 100+Hz, but it's still very good, even for fast-paced action games. Then there's the separate fact that it weighs 50 pounds less than the CRT, which while not important to everyone, is another advantage for the LCD for me. I'm satisfied with both text and gaming on this monitor, not just gaming like for the CRT.
So for me, the LCD obviously won out, and I'm happy with my decision. And I did actually try both for myself instead of only listening to others' opinions - not everyone can go through the hassle of buying more than one monitor, but it helped me know that I wasn't "missing anything" from the other side once I settled on a monitor. If things had been different, and the CRT had been more sharp with text, then maybe I would have kept it (even despite the weight disadvantage) - but it wasn't, and neither was the second one, so I didn't want to bother with it anymore. I've heard that quality control has really gone downhill with CRT's in the past year (since so many companies are phasing them out), and I wouldn't be surprised after my experiences. I wouldn't mind trying out another CRT sometime in the future maybe if I have the money to do so (and don't live on the fourth floor of a building with no elevator anymore), but for now, I'm more than happy with my LCD.
Edit: Forgot to mention resolution scaling - obviously it's a bit better on the CRT, but I've had no problems running my LCD at lower resolutions (and I'll probably have to do a lot more of that in the coming months as my 6800GT starts to be unable to drive the latest games at 1680x1050).