I'm right at 8K across three bikes. Truthfully it would be more than that if I had more money to spend on gas. Apparently riding 60-70 miles a day, five days a week in the summer costs a lot, even on a bike.
Longest I've ridden in a day is somewhere in the 150-200 mile range. I lost exact count.
My mileage will drop a bit this year, as I will be taking the car to work. My daughter starts middle school this year, and I'm taking her to the school I work at. We are already looking at suits for her, but I don't think I'll be taking her on the bike until next year. Even then it will probably only be twice a week at most. Looks like I will be a weekend warrior for about three years. Oh well.