The only way the 1080p comes into play with a t.v is if it's hooked up to a HD source blu ray, cable HD package, satellite HD package, etc. Whether it's a 32", 55", or a 155". If a person is hooking up just to a coaxial source you never see the full 1080p. Along with the HD source you have to have a HDMI cable ran from the HD source to the t.v. So, if it's just a coaxial cable then you wouldn't be wasting your money.
Cory
You do want a HD source like HD channels and blu-ray, but even DVD's look pretty good upconverted. But I do disagree that you need 1080P. I have 1080i, and even on a 50" at my viewing distance, it looks better than most people could tell from it's 1080P counterpart. The only time you can tell is on really big sets, or when you sit really close, otherwise, 1080P is throwing money away for the average viewer. Most people aren't able to see the difference, especially on a 32" TV.