What to buy with my Bevmo Giftcard

I just got a $100 giftcard to Bevmo for my 21st birthday. Since I go to school out of California and can't bring anything back with me I was thinking that this money would be great to use towards cellaring some beers until (ideally, patience permitting) college graduation.
So what I'm asking is what times of beers would be good for aging 1+ years?
I know Barley Wines, Strong Ales, and RIS all age well, but are there any specific ones that anyone would recommend I pick up?
Right now I'm thinking of a couple sixers of Sierra Nevada Bigfoot.
Thanks in advance.

Just as a matter of preference, I'd say get bombers. They take up less space than a sixer and you're really just going to want to break them out at special occasions anyway. Get a greater variety!