That's a pretty good milestone. I'm on track with you, with 31,000 miles in a little over two years (assuming I hang onto this bike long enough to make it to your milestone). It cracks me up that I have that many miles on my bike, but I've only put about 8000 on my car in the same time period.
2014 Yamaha Super Tenere
2012 Suzuki DL650 (traded)
2004 HD Road King Custom (sold)
2000 Yamaha Road Star 1600 (traded)
1994 Yamaha Virago 1100 (traded)
1982 Honda V45 Sabre (traded)
1984 Kawasaki 440LTD (sold)