Well, you are 1/2 right.
Budweiser is absolutely a commodity, no doubts about that!
It is also inexpensive. They use RICE in the brewing process. Why? Because rice is cheap! Rice in brewing is also called an "adjunct", and anyone that knows about brewing will inform you that adjunct should be avoided when brewing a quality beer.
Most expensive beer to brew? LOL! Not by a long shot. There are many craft brews that go for $20 or more a bottle, and they make very little profit at those prices. When you are talking about aging in used bourbon, whiskey, wine barrels for YEARS, the price adds up quickly.
I have visited the brewery in St Louis, I was working just up the street from it for a couple weeks, at a plant inside the flood wall. Now, I will admit that the brewery is freaking spotless! Wow, they really put time and effort into maintaining a real historic American gem of a campus! I absolutely don't think of Bud as a "quality brew". However, I agree that their quality control, the precision in their brewing, the cleanliness, and their ability to consistently brew Bud is second to none! If I get a Budweiser anywhere in the world, I know exactly how it will taste, and that is truly an amazing brewery that can accomplish that!
Now, I have worked inside many factories, refineries and power plants. And, I can tell you that the control room in St. Louis looks exactly like a refinery or plant control room. Nothing near as personal as how a small craft brewer (hipster brewery
operates!
I did try the Bare Knuckle Stout while I was at the brewery. I think that is by far the best product I have ever had from this brewery.
Now, what truly made Bud the king of beers is two-fold. 1) A consistent product. 2) They are distribution geniuses. If you go back and review the history, it is REALLY the distribution of Bud that got them where they are. Not the beers, but the distribution of the beers. Nobody else can compete.
Bud has over 2000 recipes. Why? Because they BOUGHT OUT the little guys! They couldn't compete with the craft circles TASTE, so they bought them or bought a majority share. Red Hook and Kona are 2 that were bought out, right off the top of my head!
So, my opinion is that Budweiser is not really a very good beer at all. But, at least it is consistent. Budweiser is kind of like the Bose of beers. I still drink it from time to time, and I'm sure I always will, because I know what I will get. But, it will almost never be my first choice.