For as much as we rely on their services and look to Google for advice on best practices and guidelines, time and time again services are simply dropped.
On one hand, yes as a company I imagine you sneak some sneaky verbiage in the ToS so that you can't back yourself into a corner you can't get out of, but offering a lifetime subscription and it just being canceled - I just can't trust Google anymore to keep services up they "promise" will be there.