I have my must buys from my days of drinking 100% commercial beer. Mostly SN like Celebration and Big Foot but other than that I try to strictly drink homebrew. With having a 2 year old and a son on the way, due in Aug, I can't justify spending money on homebrewing AND commercial beer. It really just doesn't make any sense. I'd rather spend the 30-50 bucks a week i'd spend on commercial beer on homebrewing stuff. Plus you can't beat the freshness of homebrew. Ever since my beer has been turning out great I'm finding it really difficult to find something in the store that would be as enjoyable and just pulling a pint from my basement.
Plus homebrewing gives me something to do and something personally to look forward to. It's a great hobby and it's fun to share my beer with family and friends. You just don't get that with buying beer. Sure, it's fun to buy a bomber and share it with a buddy but it doesn't have the same lure to me. Guy 1 "where you buy this beer?" Guy 2 "At the local market. It was new so I figured I'd give it a go." Guy 1 "Oh cool, Thanks for sharing!" Guy 1 drinking homebrew. "Oh you brewed this? Wow, it's great. How did you come up with this?" Guy 2 who made homebrew goes on a long rant about what went into the beer, how the brew day was, why he brewed said beer, etc, etc, etc... It's a much more intimate experience and one both parties are more likely to remember down the road.
Yea, I'm a little bias since I homebrew but I will say it still feels a little weird to go into a store and not wander through the beer isle as much as I used to. Keeping the pipeline full pretty much deters me from buying beer at the store. I can't look my wife in the eye and put a 6er in the cart knowing I have 10+ gallons of beer in carboys and 2 full kegs in the fridge hahaha.