I cant figure out how the average person can afford to ride a bicycle on regular basis and not be able to do most of the work themselves. I am working on my bicycles or my wifes or my sons and his wifes and kids bikes constantly. I fixed at least 15 flats this season.
I go to several different bike shops for tubes, tires and parts, they all know i work on my own bicycles and they respect me for it.