Well, with 3 vehicles of my own (2 for 3 seasons, 1 for 1 season), I'm probably below or at 10k. It really depends on how many parts runs, junkyard runs, and towing I do. If I was only driving all local, I'd have no problem staying below 7k.
I know that the insurance policy on my Silverado is for

under 7,500mi/yr

, but I know I went over that two years ago when I drove it year-round.
I guess I'll know a lot better a year from now.
Wow! You guys really drive A LOT!!!
I know my dad can put on 12-13k just driving to work alone. I'd guess he's over 15k/yr easily, but that's on a compact car getting 28-32mpg.
Hey JIM, we've got you beat on low-mileage! 2003 Dodge Grand Caravan that has under 32k. It doesn't see winter, gets used for towing my dad's boat, and an occasional road-trip.