I'm at 3. One for kegerator and cold crashing on the compressor hump, a former kegerator turned fermentation fridge, and a dedicated beer fridge for commercial beer (mini fridge). Unless the DBF doesn't count since it's not used for homebrew, save for yeast in the little bottom drawer. Be cool to have another chest freezer for lagers, but I don't feel a strong need for it right now. Maybe when I get a house with an attached garage or nice big basement.