Very little. The devices & OS are otherwise better-enough than the competition (in the case of iOS, the sole competitor, which goes a long way to explaining why

Very little. The devices & OS are otherwise better-enough than the competition (in the case of iOS, the sole competitor, which goes a long way to explaining why the market sucks so bad) that I'd still be buying them absent app store regulations, so that doesn't count, and anyway the premium's pretty low if you're comparing them to actually-comparable products and factor in resale value. I think the 30% cut (which isn't always that high, these days, for smaller players) of my purchases amounts to low-tens of dollars per year and almost all of that is from a single subscription. So, less than I spend on any one streaming service.