I've shaved it all off twice, then kept it at a number 2 buzz cut for a year. My flatmate and I used to get out the clippers every fortnight and cut each other's hair.
It all depends on the headshape. I would love having no hair again but I am female and work in a corporate environment so it's not appropriate at this stage.
You do need to consider the condition of your scalp. I have a rather large scar on one side of my head, courtesy of a car accident, which can freak people out. But you know, it's only hair. If you don't like it, it will grow out again soon enough.