I buy a decent quantity of beer. Some of it is to replenish my bottle supply, but some of it is good inspiration for beers that I want to brew. I definitely don't buy as much beer as I did before I started homebrewing, but I still buy 1-2 Bombers a week just to see what is out there that I haven't had before. However, I may have to slow down on the amount of beer I buy, and focus on drinking the homebrew I have in the closet. I have almost 20 gallons of beer in my closet right now, and I am almost out of bottles.