When I was young, strong as a bull and twice as smart, all I ran were deeps. All drawn comb then went into next years brood chambers as I expanded. The foundation was mostly duragilt and I never noticed and can't say I do now, notice much difference between brood comb and honey storage comb. The brood comb rapidly gets stiffened up by all those layers of cocoons lining them. If you can throw deeps for supers, it is sure cheaper than running mediums and the standardization is sure a lot easier to manage.
Now I am using deeps for brood chambers and experimenting with mediums for a brood nest. A couple weeks ago I found a queen who was laying beautiful large patterns of infertile eggs in worker cells and decided I would shake out the three medium deep colony to spread a large population around among a group of weaker wintered colonies. By the time I shook out thirtysome medium frames I had about decided where the medium for brood experiment was going. As long as you can physically do it, deeps are just plain easier and quicker to manage.