I have a 40" that's about 6 or so feet away from where I sit and I can't really tell the difference between BluRay movies and upscaled DVD's, though I can only do 720p and 1080i.

Upscaled DVD is good, but Blu-ray is much better and well worth the extra money.

I can't really tell much of a difference. Certainly not enough to justify the price difference.

i'm not techno nerd either but I don't think it's too hard to notice a framerate drop , differentiating between 30fps and 60fps shouldn't be too hard after a little practice.

heh maybe it's just me.

I'm willing to bet that if I took many of these Blu-Ray boosters and put them in a room with a proper AV set up and had them vote whether content being displayed was upscaled or true 1080p they would perform very poorly unless the content was displayed side-to-side (or back-to-back).

There is a difference that can be seen, but it is not something that most people will notice unless they have something to compare it to directly.

I don't know why anybody really cares. Just as you enjoy your Blu-Ray discs, let people continue to enjoy their DVD's and if they choose, upscaling them. They'll upgrade when they're ready.

Personally, from what I've seen, Blu-Ray does look better but only now am I considering getting a Blu-Ray player and it might still be a little while. I might get a stand alone Blu-Ray player or if there is a good price drop, I might still decide to buy a PS3 despite having just bought an Xbox 360.

Which is cheaper?

I can tell the difference on my 42"

VHS

Come back when you know what the hell your talking about.  I have a 46 inch 1080p and a 57 inch 1080p and I actually set my ps3 up against an upscale converter just to see myself ( when I first got my 46 inch ) and there is  little to no difference on the 46 inch JVC.  Both sets are mid to upper quality as well.