I feel the same, nudone,...
I've always tried to help people as much as I can with their trouble, and I wouldn't take no money,... I know that I would feel bad if I did. I never had a problem with it until I met a guy that would call me every other day with something. I started spending lots of time there every week, trying to explain him things. He was the kind of person that had to write everything down on paper, because he wouldn't otherwise remember what I had showed. After a while this started to frustrate me a bit, since I would never hear from him, unless there is a problem (which was at the time, quite often). Then I moved to the US, haven't heared the guy in a year, then out of the blew he finds me on msn, messaging me with a problem he has,...
Though, I think, if I would make a career out of it, I'd feel like I were ripping people off. (It would also suck because it'd be 'work' instead of hobby, if that makes any sense at all,... like, I enjoy programming, working on projects I choose; not running around all day plugging in cables people forgot to plug in and charge $1000),..
So, I guess you have to ask yourself, in the first place, if you would really enjoy it if you did it, and if you could live with yourself now that you're charging people money for what you'd normally do for free.
They did give some examples in the movie about the actual price of these services; they are quite high imo.