You're right. For all the different (but not that different really) options and the piss that is Purity, you go forwards extorting money from your customers, you lose them.
Purity isn't piss, though. Certainly not by comparison with what we've had before.
It was when I tried it at the Bournemouth and Burnley games, if it's improved I'll give it another go as in a decent pub it's a lovely drop.