[ManicMechanic]

We're doing Vex only this year. After 3 years, we have accumulated $1000+ of Vex equipment, and it takes 3-10 Saturdays of car washes to earn that kind of money. The current registration system means that we can run 2 teams/year on $100 (our tournament fees will probably be free) -- one car wash, not 10.

The other reason has to do with learning. After 3 years, the pioneers (seniors) are ready to graduate but are able to pass along some of their Vex knowledge before they go. The rookies have learned at a much faster rate than the seniors did when they were freshmen. With continuity, the ratio of frustration:learning is lower. The only adult technical mentor is also going to "graduate" with the seniors, so starting all over would not be wise.

For someone starting with no pre-existing equipment or knowledge of either system, I could see the incentive to join FTC being higher.