On my '90 K5 play truck, let's see. I'd say about 250 mile round trip on average to the trails, times about once a month, so 12 x 250 = about 3,000 miles a year.
My daily driver was bought new in August of '00 and currently has over 15,000 on it. It made a lot of 200+ mile round trips in the first 6 months, but now basically just goes back and forth to work at about 40 miles per day.
6.2Blazer