You all have some longish commutes or else get in a lot of rec rides to rack up so many miles. I have a wife, two young kids, an old house and I am the main chef, gardener, and handyman so if it was not for commuting I would not be riding my bike at all, ok well on a vacation with my dad I biked about 15 flat miles on a rental bike but that’s my only rec riding for all of 2012.
I only track mileage and based on that, I’ve done around 90 to 95 round trip commutes (22 miles roundtrip from Falls Church to downtown DC). When I take the subway, I also do a short commute (3 miles roundtrip) from my house to EFC metro which I also log for miles.
I have a lot of other physical interests like training with kettlebells and weights and if I bike too much my 40ish body gets too tired to do my weight training. Unfortunately if I bike too much, I’ve found that my muscle mass tends to decrease and while I get lean it can be on the skinny/fat side so for me it is all about balancing physical pursuits and having 2 to 3 days per week where I do my biking with the other days for rest and weight training.
Also having commuted now for five years, sometimes (I know this sounds like a travesty) I get bored on the same route. Just knowing I have options helps, even if I then get tired of riding the subway after a few days too. I’ve put more miles on my bikes than on our secondary car (a 13 year old Honda Accord). When I got the oil changed on it the other day, the guy was shocked that I only put 1500 miles on it in 9 months.
I get the transit subsidy at work but now what you don’t use is forfeited back so I just get the maximum and rarely use it all. Sometimes with crazy work and home schedules I can only bike a few times a month (usually in winter) and use most of it, but not so often.