[euromodder]

MPG-wise it'll definitely work out.

Given how cheap US gas is, it probably won't work out financially unless you're up to maintaining the bike yourself.
Doing all the work yourself isn't all that easy on a fairly new Beemer with lots of electrical and computerized stuff.

Keeping a mc running is often as expensive as a car.
Tyres are expensive, and wear fast.
Oil changes are more frequent.
Chains wear faster than a car tyre.
Good clothing is expensive.

I don't want to put you off the idea of starting to ride, but look beyond the fuel mileage to make the decision.