I've bought the complete set 3 times already. (VHS and the 2 DVD sets-- luckily I didn't pay full MSRP at launch for any of them)
I'll be waiting for a very good deal before jumping in this time (I can't believe how fast the most recent set dropped in price).
That said, I will eventually own all of them on BR... making the 4th time I've bought all of these movies.
I'll probably at least rent a couple of the new releases, though, just to see what the fuss is about.