[cbale2000]

No registration fees here, though students wanting to keep their team shirts generally have to buy them (students who put in "x" number of hours get a shirt at no cost though).

In the past (pre-2009) we also had a system where your cost to go to an event was based on the number of hours you put in (more time = less cost). It was made clear at the time though that cost should never prohibit someone from going to an event.
With the districts in MI making the events so much closer & cheaper, and because of our smaller size team the past few years, we've been using a system closer to "put in at least 20 hours during the season (or something like that) and you can go on the trip". It helps motivate kids to show up to more build meetings, while at the same time sort of "weeding out" the kids that aren't really interested.