I don't buy cheap beer, ever. Not even if I'm asked to get a case for a party. If I'm going to drink, I want something I'll enjoy. Cheap beer is about getting a buzz or getting drunk. It always freaks people out, "you shouldn't have spent so much for a party". Why? I don't see it as a choice. Should I have only opened a can of kidney beans for the dish I brought, too? No, I want to have something that I will enjoy, that others can enjoy, too. It's not just about "filling ourselves to the gills on as little money as possible." But that is how people treat beer.
That's not to say I don't get drunk sometimes. The experience of sitting in an innertube on a lazy river is significantly enhanced by alcohol. A wedding party is significantly enhanced by copious alchol. But most days I want to be productive and make things. I can't code or write well--and certainly can't solder at all--when I'm drunk. I similarly don't watch a lot of television, or read a lot of books. I'd like to fill my time with more productive tasks than consumptive ones.