I decided to get the Samsung 904B.
I went to Microcenter, having high hopes. It seemed like it would be a nice combination of a computer specialty store and a large chain that can offer good prices. I found a bunch of sales guys who were less than helpful, and they were sold out. When I asked about their dead pixel policy I got a blank look from two of them, and after I explained my concerns they said "I don't know, go ask Nathan or customer support." I have no idea who Nathan is and they didn't offer any clues, and customer support had one hell of a line. Thanks guys, I'll pass.
I went home, used the Best Buy website to find the nearest store with the 204B in stock, and called. Talked to a guy who seemed to know what he was talking about ("Oh, the 204B? I'm pretty sure I've got a few of them, let me check . . . yeah, I've got 3."). He also explained that if I wasn't happy for any reason I could return it in 30 days without a restocking fee. I asked him to hold one for me, I grabbed an unused gift certificate I had laying around, and drove the 30 minutes up there. When I arrived a Best Buy worker in the computer area offered to grab the guy I talked with (I always prefer to stick with one person if I can to establish some report). He showed up, grabbed a box sitting under the desk with my name on it, and was happy to take it to Geek Squad to check for dead pixels. He also pointed out that him opening it would not void the warranty. I was shocked at that point at how helpful he was. Perhaps it's because I went to a Best Buy a bit outside of the city. He hooked it up at the Geek Squad (tech support) desk, looked at it for a few minutes, and pronounced it good to go. Strange....a Best Buy experience that was not painful to the core. I knew something had to be wrong.
I got home, removed my LG Studioworks 995E (the older of my two 19" CRTs) from the desk, dusted, and hooked up the Samsung 204B. It detected and installed just fine, except for one thing. My now secondary monitor, a Samsung 950p (19" CRT) seemed incredibly dark. Compared to the 204B it was just plain dull. Holy cow, I'm not sure I can use the two together there is such a brightness difference, even with the LCD turned down to 75% brightness. It doesn't help that the 950p's controls are freaking hard to use (no simple brightness adjustment). Maybe I should get a second 204B.
Then I downloaded and ran
Dead Pixel Buddy. Oh oh. One dead or stuck on black pixel. Located off to the side. I hadn't noticed it in an hour of use, and since then I haven't noticed it. So far I'm not motivated to try swapping this display for a different one. If more appear in the next 30 days I'll consider it. But for now I'm very happy with my 204B.