I'm also in the same situation, I opted only because they offered it for free "Organizations that sign up during the beta period will not ever have to pay for users accepted during that period. "

Google put users like me in a painful situation, I'm not using more than gmail and now forced to pay for everything they offering. Attracting ppl by offering free eco system and later forcing them to pay isn't something except by Google and must have to support their early adopters.