I have a stand up side-by-side fridge for my kegs. I can fit four ball locks in there, with a shelf above the kegs for yeast harvest jars, two drawers under the kegs for brewing materials, and a door full of shelves for bottles. I retired my old top-freezer stand-up fridge in favor of this one. That said, I've never had a chest freezer, but I'm pretty happy with my setup. The only thing I'd see a chest freezer getting me is more taps or room to carbonate a few kegs waiting for open taps. I suppose one day when I have a bar in the basement, a chest freezer probably fits in under a bar better, too.