won't be costing Microsoft a lot of money in support calls
I think you've got it backwards, there's nothing Microsoft loves more then support calls because that's where their real cash cow is: charging enterprise monstrous yearly support fees.
In other words, enterprise support contracts are making Microsoft money -- not costing it money.
Consumers and small businesses aren't nearly as willing to open their wallets for support. The best customer is one who pays the annual fee and never calls in for support.
I think you've got it backwards, there's nothing Microsoft loves more then support calls because that's where their real cash cow is: charging enterprise monstrous yearly support fees.