I am planning on purchasing a kegerator and surprisingly Costco has a pretty good deal on one. I researched some old threads and Costcos price in store is even better than the beverage factory. My two questions would be is the 5 pound co2 cylinder ok or should I upgrade. I am not even sure if a bigger unit means just less filling or what. Second question would be any ideas of good places to purchase 1/4 kegs as I want the beer to stay pretty fresh. I was thinking I would try a couple local places like stone, karls, and oggis but not sure if they do 1/4 kegs. Thanks for any assistance.