Not every microbrew is an IPA. More importantly, if your goal is to get drunk (why else would you drink ten beers?) hard liquor is much cheaper.
There are plenty of reasons to drink 10 beers. Mostly day drinking. But maybe out on the town for a night. Anytime you want to have a long drinking session, and especially one where you don't want to get too dehydrated. Beer as a sensation is totally different than liquor. And yes, thank you, I didn't know that all microbrews were IPAs. I was using that as an example. Most microbreweries have a tendency to put way too much flavor into what ever it is they're making. It's a way to try to differentiate their product, but so many just don't taste like beer anymore. I like old world beers, and sadly, it's just not common around the USA.