Bearing in mind a $15 increase for the first endurance race is a 25% increase over the early entry fee right now, I don't FEEL that's unreasonable. It's $90 over the course of the season for those guys who are only doing one endurance race since the 4 hour has its own pricing. That would probably raise another $1k+ per weekend.

I'm probably reiterating what's already been said here but... When paying, it would be awesome to have the endurance races count as the last sprint. So given the proposed fees Tony laid out on page 4 it it would be:
1 Sprint + 1 endurance = $140 + $60 = $200 (vs. $215)
2 Sprints + 1 endurance = $140 + $60 + $30 = $230 (vs. $275)
1 Sprint + 2 endrances races = $140 + $60 + $30 = $230 (vs. $245)
etc.

The endurance product still represents a 'value' either on its own OR added to a sprint race menu.