I agree that there's been a tremendous benefit for me over the past two years as well. I certainly did better than most in the raffles too, with the b/w Vader maquette and the Commander 5 pack. I also scored what I wanted this year without hassle I believe.
I'm just not that excited with this year's releases, mostly because I don't collect their lines, even the mini-busts, as broadly as you do. There's only a couple of busts I'm interested in anyway and of the exclusives, I'm only mildly interested in the Fett from SDCC. But $60 membership means I'm looking at paying $120 for the SDCC exclusive ($60 for the bust, $60 for the membership), probably more than I'd otherwise pay on ebay. True, I'd get one of the membership gifts (this year's sucked ass and I didn't even order it) but I don't want the Rex bust and the Vader helmet thing is too iffy without seeing it in advance.