I don't think this is a useful mindset. Grids are very handy comparison tools. Also, licensing costs are only part of the overall cost of running a service.

I don't think this is a useful mindset. Grids are very handy comparison tools. Also, licensing costs are only part of the overall cost of running a service. 'Serious businesses' will not run on a piece of software that is not supported by either a vendor or their own staff. Not everyone is comfortable fixing bugs in their DB platform, or relying on the community to do it.