Let me get this out of the way first. For me, frozen chicken breasts make more sense and are a much better deal than fresh. This, for me, is an epiphany. I've always had an aversion to buying pre-frozen meat. Odd, given that I've never had the same issue with pre-frozen veggies. The past few weeks, I've been defrosting and using pre-frozen chicken breasts. The deal was too good to pass up. I was looking at BJ's at "freezer package" fresh chicken breasts - packed in easy to separate packs that you put straight into the freezer!
I'm a single guy. If I buy 12 packs, then 11 of them go straight to the freezer and become "pre-frozen" anyway. All this time, I've been paying $0.79 (average) extra a pound for the privilege of paying for freezer wrap (ziplocks, foil, whatever), spending 15 minutes separating it all out, wrapping it up, and turning it into pre-frozen myself.
From here on out, I'm getting the cheaper, frozen ones from the start.