I have been collecting DVDs for 6 & 1/2 years, so I bought most of the biggies when they came out... Toy Box, Fantasia box, most of the WD Treasures, the Limited Issues (the movies, not the sequels), all the Collector's editions, and the two-disc sets of all the animated classics that have been released.
There were a couple of Limited Issues I missed out on, but luckily, they were the ones that were re-released in either the gold collection, or as one of the special editions.
There are a few things that I am waiting for a Platinum Edition (or similar) release, but as long as I know that a re-release is planned, I don't care about the OOP versions.
On the WD Treasures, I bought the first 3-4 waves as they came out, and I just recently picked up some of the later ones that I was missing. Right now, the only ones I am missing are the Disney Rarities and the Spin and Marty sets (and the wave that is coming out, of course...)
I don't have a whole lot of Disney stuff in general left on my wishlist. Now non-Disney stuff is another matter!
I have tons of OOP wishlist titles, many of which are getting tons of money on E-Bay (Criterion Hard Boiled, The Killer, This is Spinal Tap, Blood for Dracula, Flesh for Frankenstein, Salo.) There is also a lot of Limited Edition horror that I am looking for, although I probably won't find it.