I LOVE the quality of my SuperBit movies. I own a handful of them (haven't watched them all yet though)
Desperado (great transfer...amazing DTS)
The Big Hit (yet to watch it, got it cheap)
Vampires (yet to watch, got it cheap)
Dark Crystal (decent upgrade)
Labyrinth (nice picture, good DTS)
Bad Boys (have yet to watch this one also)
I still love the SuperBits...I will always chose them over the regular version. I have a 55" HDTV and 6.1 surround setup, so you can see and hear the difference...although, some more than others.
I probably would NOT upgrade my movies if I already had the original version (except I did for Dark Crystal and Labyrinth)
I'm glad they are releasing all of them on the SAME day this time....thus, SuperBit SpiderMan for me