What part of bike did you hit mirror with? With cruiser-type bikes, it may be bars, which can be quite dangerous if you hit mirror hard. Nice thing about sportbikes is they tend to be narrow with mirrors being widest part. Those just fold out of way if you tap something.
Compared two month's worth of commute expenses from my Gilead contract. First two months I drove and racked up about $450/m in gas and toll-charges. The last month I was there, I rode my CBR exclusively and qualified for 1/2-price toll and much better MPG. Ended up spending $250 that last month, or almost half.