I'm definately a lifer. I have no desire whatsoever to go beyond admin support (except maybe grow this job into an office manager's position since I do many of those duties now).
It is very hard to get others to see that I am happy as an admin support professional. I'm the power behind the throne so to speak. I may not have the say so on big issues, my boss is always asking my opinion of things on smaller things so I feel valued most of the time.
My boss is currently working my job into something a bit different. What that is going to end up being, I don't know yet. I am fairly certain it will still be support - just in a different area than what I previously did. Right now I like the direction it seems to be going in. Only time will tell.
Michelle