Those are good points. As I think about it some more, it's not even just support that they sell (as in, you can call them up when there's a bug). The large en

Those are good points. As I think about it some more, it's not even just support that they sell (as in, you can call them up when there's a bug). The large enterprises they sell to value: - support - training - ease of install - ease of upgrade - indemnity (e.g., Red Hat promises to pay your court costs if someone sues for patent infringement) - stability (long term support releases) Those are all things that plain old open source by itself doesn't provide, but Red Hat does.