I can't help but to wonder if streaming will ultimately wind up being the death of both the DVD disc and BluRay disc technologies. I am uncomfortable with that prospect. I strongly suspect the shift away from disc-based player technology will ultimately not be in the general public's best interest.
My DSL connection here isn't ideal for HD movies; I downloaded an HD movie through iTunes a couple weeks ago, and it took half and hour.
Having said all that, I do occasionally visit StarTrek.com and watch their low-res, pre-remastered eps of TOS. I find that, in most cases, even with the "original" FX, TOS is timeless and shines with brilliance. Having said that, I caught most of the TOS-R epsa few years ago before StarTrek.com took them down, and I feel that, at least half of the time, the remastering provided visible improvements to the visuals. One thing I do not like about TOS-R is the new theme music they shoehorned into the opening titles. It's too jarring.