Do you feel confident about that? I'm a couple years younger than yourself and before starting this gig about a year ago I was considering doing something else (anything ... Apple Store, "IT guy" for a small 10 person company) but always got turned away for "too qualified". No desire at all to get in to management / team lead stuff.
Thankfully this job is pretty cool but I'm quite worried about what to do after, when that time comes.