GMail has had long (as in many hours) email outages too. And have lost accounts. Not sure I'd be trusting one's important email to them.
Many people assume the risk of lost data, inaccessibility, etc as a tradeoff of using a free service, though some are truly unaware of the horror stories regarding GMail, Hotmail, and Yahoo email. GMail offers paid accounts, but doubt that's any better other than perhaps one's trouble ticket gets answered a bit quicker. For many, it's near impossible to get personalized service from GMail - they could care less.
Some things to consider before dumping the GoDaddy email service.
Ron