I thought that first. With the exception that they exactly leave the Onedrive storage class (1TB, 60$/year) out. If you are happy with 200GB, the Google offer seems to be a lot cheaper. If you need up to 1TB, you pay twice than for Onedrive. Theoretically you can even count Office 365 Home as a 5TB, 90$ option, which makes it even yet cheaper. However that's a bit more of an unfair comparison, since it would involve the hassle of using multiple accounts (and I'm not even sure if the Onedrive app would allow that on a single installation).