I've used Linux and NetBSD on my main machine in the past, and still use Linux on my XO. Alas, both are starting to look more and more like their commercial cousins given that projects like Gnome and OpenOffice and Firefox gets a lion's share of the development efforts and much of the stuff that fits in with the Unix philosophy has been receiving less and less attention.
In some respects, I'm also increasingly seeing some aspects of the Unix mentality as barbaric. While I agree that text-processing is (in principle), better than word processing, it still has many faults. For example, the final stages of document preparation are still dominated by the compile, verify, edit cycle. That is cumbersome, and there is no need for it with the speed of contemporary computers. The dominant text-processing system (LaTeX) is also unweildy to use. I doubt that many people understand its internals, which means that system-wide changes that should be as simple (like changing the paper size) is usually a chore. A lot of people don't even understand how to use the userland stuff, which is why practically every LaTeX website is a list of tips on how to use it. Alas, a lot of Unix software falls into the same traps.
There is a lot of space for improvement in Unix. We have long since left the age where text editors were line editors, which made it difficult to make random changes to documents. Yet Unix shells are still essentially line-editors, line-editors that ignore the lessons of environments like MPW and Smalltalk. (Heck, given the text editor analogy it's also worth mentioning that most unix text editors don't even have soft linewrap or automatic spellchecking.) Some people are trying out new ideas with things like window managers, but those ideas barely work since a subset of applications depend upon the old windowing model -- either directly (like the Gimp) or indirectly (paned windows make it hard to split screens).
Anyway, sorry for the rant. I guess the short answer is: Linux doesn't make much sense these days. It offers very little that is both unique and contemporary. And I don't see many attempts to make it so.