Actually, let's do this properly. (Translation: I did it in my head on the bus this morning, so let's write it down.) When I was in bike-riding mode this summer, I spent $29/month on pubtrans1, or about $1/day. When I'm not riding my bike (and have no pass), an average week costs me $24, or about $3.50/day. So, for me to save money over a $59 T pass in a 30-day month, the equation is:
$1 * D + $3.5 * (30 - D) < $59
Where D is the number of days I ride my bike. Solving for D gives me
D >~ 18.5
So I'd have to expect at least 19 days of good biking weather in November, in Boston, to make it a better deal than buying a pass. I don't like those odds.
1This is almost entirely because of Mondays, when, because I wear my kilt and K gives me a ride home from dance, I take pubtrans to work instead of my bike, to the tune of $5.45.
What, me anal?
Date: 2010-11-02 03:03 am (UTC)$1 * D + $3.5 * (30 - D) < $59
Where D is the number of days I ride my bike. Solving for D gives me
D >~ 18.5
So I'd have to expect at least 19 days of good biking weather in November, in Boston, to make it a better deal than buying a pass. I don't like those odds.
1This is almost entirely because of Mondays, when, because I wear my kilt and K gives me a ride home from dance, I take pubtrans to work instead of my bike, to the tune of $5.45.