The fact of the matter is this:
If it is significantly cheaper for the end user to order the film in smaller bulk quantities from Freestyle (including shipping) than it is to buy the film from a local Photographic shop, its not because FS is undercutting your local shop but because your local shop is completely overpricing all of it. We're not just talking 25cents a roll here either. 100% markups are never sane.
Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.