
Actually I do use dry for the convenience preferring to go with one that has a reasonably high meat content. I do add things to it, but at the moment haven't freezer space (ickle dog freezer inaccessible due to redecorating). Otherwise I like feeding half and half good dry with raw.
I have in the past fed all raw, and to be honest the dogs have done well on it and enjoyed it, but they do equally well on the dry, and enjoy their meals too.
My Dad saves all the household suitable edibles in Ice cream containers in his freezer, so they often get granddad specials as a treat. Nothing left over here goes to waste either it gets shred between them and their rations cut to take it into account.
As otyers have said dogs are individual, and most very adaptsable and will thrive on lots of different feedign regimes, so go with what suits your dog, you and your purse.
I would just generally stay clear of the very cheap completes, tin or dry.