Sorry to resurrect this ancient thread.
I decided it was time to pick up the Lost collection, but I see that what was once $180 at Target - the complete collection on BD - is now out of stock there, and nearly $400 at Amazon. Its even higher at some other sites. I was able to find the DVD set for $99 at Walmart, but will I kick myself later for buying that? Is there that much difference in picture quality between the two, if any at all? I was under the impression that the show was filmed at 720p, so DVD should support that, right?