That's just it. You listed 7 different services that provide various ways of streamlining payment. Should I sign up for all seven? Or can I rely on all content

That's just it. You listed 7 different services that provide various ways of streamlining payment. Should I sign up for all seven? Or can I rely on all content providers supporting the one I choose? Just like Visa, Mastercard, Discover, and Amex* are accepted everywhere, this problem won't be solved until an underlying universal payment network is established and ubiquitous. So... BitCoin? * I know I know, but it's 80%.