Because "Perfected" is a pretty relative term. Beers have a very wide variety of tastes and appearances, 95% of domestic beer is 30 different labels on the same stuff, a light-colored slightly-sour-tasting lager in regular or 'Diet' versions. Until American beer tastes like a not-too-hoppy amber-colored Pilsner, I don't regard it as 'Perfected.'
I guess taste is about as individual a thing as there is. I've only tried maybe a half-dozen homebrewed concoctions over the years, but could never handle more than a couple of sips. Nasty. I have maybe a half-dozen brands of American mass-produced beers that I think are as good as beer can be, and none that I really dislike. (Of course, the worst-tasting beverage I've ever run across is Genesee Cream Ale, and that's mass-produced.)
Same with homemade pizza. For my taste, no one has ever made a pizza in their kitchen remotely as good as Pizza Hut.
Give me a Pizza Hut pan pizza with a half dozen toppings, a six-pack of Rolling Rock, and a bag of chips. Then come back tomorrow with the same thing.