"I've never tried Linux but I know I don't like it."
Hmmm must be so nice to be so 100% sure about things in life. I cut my teeth on IBM mainframes, DEC Alphas, IBM AIX mini's, moved on to Solaris, worked as an Ingres, Informix and Oracle DBA and learned countless languages along the way. Now after 25 years in IT I'm learning the nitty gritty of Windows admin and chucking in a bit of learning C# for good measure.
Shoot me through head if I ever get so jaded as to never want to learn something new each day in IT!