Last week, for the first time, I rode out from the end of the Toronto subway line to my mom's place in Georgetown and back in the same day (81 km). Today it struck me that this range makes huge areas of countryside available to me -- a sloppy semi-circle from western Oakville through Milton, Caledon, Newmarket, Goodwood, and Oshawa.
Obviously I'm not up in GtrSteve territory, but still, this is a big deal for me, because I don't drive a car and have assumed that some of those places are just not an option.
(I also learned that some suburbs take much better care of their bike systems than the supposedly-enlightened big city does, but that's a rant for another time...)