....long story short.... don't give people free pizza.
I've seen the argument being made a few times that goes something along the lines of "if only we hadn't made isotropic available to people in the first place people wouldn't be complaining now".
This argument just seems completely bogus to me.
Agreed. At the very least, Doug demonstrated that there was a kind of demand for online play and attracted a lot of people to the server who now play Dominion online as a habit. I'm happy to be contradicted by some sort of numbers, but one suspects that Isotropic was, on the whole, a big net win for RGG; at the very least, I don't see how someone can dismiss this possibility.
Anyway, about the pricing arguments: Whatever a "just" price for the online service is, and whether Dominion is multiple games or really just one, I don't know. But it seems to me that casual players will just be confused and turned off by the prospect of buying several parts of a game that hardcore players have the entirety of. (And, as pointed out elsewhere, the $85 price tag, just or not, will inevitably invite unfavorable comparisons to other games that cost $85.)
The problem is partly that Goko needs to win over a lot of people to make Dominion online viable; the whole reason people go to isotropic is because finding games is ridiculously easy. Because of this, I think up or down trends for Goko will be self-reinforcing, and thus pretty bad if it isn't able to grab a lot of people quickly.
And as of right now, with this pricing structure, I think many of us are pessimistic about that.