I didn't because I really was just looking for a general over-view/education of what to expect from a DVD player -- what features and capabilities separate a high-end interpretation of a player from a mass consumer-grade piece, and whether those differences are worth paying for, and where diminishing returns begin.
I'm right in the middle of re-building, so a lot of my setup is in flux. I'm using just a 30" HD tube widescreen, but that'll be a HD plasma down the road. I need to buy a new (probably used) processor, right now a Lexicon DC-1 seems like a good idea, but who knows. I'm driving my speakers with a couple of B&K amps (all used). Where audio is concerned, I've always subscribed to the approach, "why should I buy a brand-new Chevy when I can buy a two-year old Cadillac."
I'm not so sure I'll get off as easy with the DVD player -- I suspect they're changing, unlike solid state amps, all the time. On the other hand, there's that "diminishing returns" caveat. $500 seems to be the theme (so far) for each item (my most recent purchase, a used B&K three-channel amp, cost me about $500, and was over $1k new). I guess I need to figure out what I can buy for under $500 in a DVD player, verify whether there's viable options on the used market, then determine if it's worth going upscale, based on the answers to the first paragraph. LOL. You asked.