Google's business models are at-ends with one another. Are they an ad company? Are they a free/low-end provider who can get away with killing popular services when they no longer benefit them? Are they a serious provider of business services?

They can get away with one, maybe two of these. I'd be happy to pay a bunch more for Google apps if they had a more serious SLA/they gave more confidence that the services aren't going to change, and if they offered business features to match the price.