I was under the impression that if you placed beers you intended to cellar in the fridge, that this would cause beers that were bottle conditioned to not age as intended. I keep my beer fridge at around 40 degrees and, from what I've read that is too cold for the yeast in the bottles to do the job intended, as the yeast can go into dormancy. Granted, keeping them in the house at 70+ degrees in the summer isn't ideal either, but the bottle is still "conditioning"...it might not be optimal, but it's what I do.
I think the main key is keeping the beer from light, and if it bottle conditioned with yeast, as close to 55-65 degrees as possible. I did a tasting of a Smuttynose "Really Old Brown Dog Ale" with 3 bottles and some friends. Bottle 1: 2012 Aged in fridge; Bottle 2: 2012 Cellared in my basement with temps from 55-75 during the year; Bottle 3: 2013 Bottle left in fridge for a couple of weeks. The results: a definite flavor change for the better in the basement beer vs. the fridge and fresh beer.
That's just my 2 cents; and I'm sure different beers react in different ways. I'm not claiming to be an expert, nor do I play one on tv, but based on my experience, I'll cellar over fridge with all of my beers that I buy to age.