This is the biggest cop-out of a reply. I hate it. OP has already stated:
>I pay them. My work pays them.
Github is raking in oodles of cash and they STILL can't keep their service up without going down, quoted from OP, "[e]very couple months".
It's not about "making a better one", nor is it about paying for the fancier/premium features; it's about the uninterrupted service, which Github keeps failing to provide.