I have it all (discluding talent cards) thus far and plan to get each one as they come out. Getting them one at a time makes the wife not notice as much. I don't line them up on a shelf all together, but keep them in drawers are in divided up stacks so the wife doesn't notice the $ on a large shelf she probably wouldn't say much (she's actually played a couple RPGs with me), but being a veteran of the Marriage Wars I've learned not to flaunt such stuff if I want more without having to go through the added debate.
I have collections of RPGs on large shelves in my basement. I wouldn't be able to stand 15 years from now looking at my FFG Star Wars collection and knowing there is that one book missing that is now only available on E-bay for $60 with a torn binding, worn cover, and notes throughout.