Looking at craft beer vs home brewing may be likened to my neighbor baking cakes in her home to sell. She makes cakes that rival the very best bakeries in town. She charges half the going rate and can do so since she doesn't consider her mortgage, taxes, utilities, insurance on her home as part of her operational costs. She lives there, enjoys baking cakes as a hobby she loves, and only wants to cover the cost of her ingredients with a sale of a cake.
We all love home brewing as a hobby or probably wouldn't be on this forum. I don't count my time as labor, nor do I factor in my water bill, electricity or any other household bills when I determine that it cost me $XX to brew a keg. In that regards, we are comparing apples to oranges. Maybe it does cost a top end brewery more than we think to produce excellent products once you factor in all costs, labor, transportation, distribution, etc.
It remains our choice to buy top dollar craft beers, but if we stopped buying them, would the price drop? Or would the product simply go away? If it went away, we could think the margin was tighter than we may have thought and they can't cut the price. If the price dropped, they simply readjusted their profit structure to meet supply/demand equilibrium.
But, in the micro scheme to me personally, I'll be dammed if I plan on paying $13.99 for a 4-pack of 12 oz bottles for a beer I can make at home which is every bit as good...or better, than they brew. I am blessed I can do this, but for many of the rest of the craft beer affectionados, they may not have this skill available. If they like a beer, they are held hostage by pricing schemes. I just figure out a way to clone the beer.