I can remember buying that '72 Honda CL100 and the feeling of freedom that I got having a license and a motorized form of transportation. I could go when and where I wanted and wasn't shackled by where I could pedal or walk (or be taken by my mom or dad). I think that riding now is about that freedom, but now it's freedom from all the other stuff that life lays on the plate. It's amazing how a 20 minute ride can seem like a vacation and create a real attitude adjustment.
I associate with riders and they know the story (you don't have to explain it to them and they do understand). Often when I describe riding to someone who doesn't, I get they feeling that they really wish they could. They just let something hold them back - wife, kids, finances, too young, too old, too busy, fear, too big, too small, etc. I think that a lot of non-riders are the wannabes. They wanna be riders, but just don't do it.