I was going to buy them originally, but not now that I've heard they'll be letterbox. Ironically, I would have bought this set 4 years ago in a heartbeat.
I suspect the OOT will be released in higher quality at some point in the future. I think the demand is just too great, and it would be foolish to not release it later.
I know Lucas can say that, if these sell poorly, there's no demand for the OOT. But I'd like to think there are others at LucasFilm who know better.