I agree, Linux does have a good rep in the enterprise world. My point was simply that, by the open-source, distributed nature of Linux/BSD development there isn't a true "first party" that has control over the whole thing. IBM, Oracle, Red Hat, Canonical, et al., certainly do well supporting Linux, but by definition they provide third-party support. (Unless they're providing support for code they've developed and contributed -- that would be first-party support.)