IMO, $6/mon is more of a nuisance than a hindrance. One has to wonder, though- why six dollars, as opposed to twenty? I would be just as likely to pay $20/mon as I would $6/mon, if I think that what they're offering up is even slightly better than what than Google or Zoho offers.
So, the problem isn't so much the fact that it's not cost-free, but that it's cost-free but cheap. I don't like cheap.
As far as the state should be concerned, marriage is nothing but a legal contract, and the state has no business telling anyone who they can or can't enter into a contract with. You've done the free world a solid, New York.
I like this. I like this a lot. This is perfect for someone who just needs to get a few thoughts together and can't be bothered with firing up Dia or something similarly bloated.
The smart thing to do is build it yourself, learning whatever you need to learn as you go along. You don't need anyone's permission or expertise to get something up and working. At the very least, try to build just enough of your idea to get the right people (developers, designers) excited.
So, the problem isn't so much the fact that it's not cost-free, but that it's cost-free but cheap. I don't like cheap.