1) I am a tall guy, 6'2" and 230 pounds, a tiny bike is not an option.
2) I want a bike that will be used 90% on the road, and 10% off-road.
3) I want to be able to ride on the freeway, and not have to redline to maintain 60mph.
4) A large gas tank is important for me. I would like to take long weekend trips.
5) I would like to buy used, hopefully under $2000 since I am new to motorcycles and don't want to spend $8000 on something that might sit in the corner of the garage collecting dust. If I could find something for $1000 I would be very, very happy.
I loved the articles I have read here.

My other question is, at what point does is a motorcycle considered old. For example, I stay away from cars with over 70,000 miles. Do motorcycle engines have a shorter life than car engines?
I am a complete newbie.

