We could do everyone in for no money, but if you have an asterisk by your name you're in for the $5 pool, and if you have a $ by your name you're in for both the $100 pool and the $5 pool. That way everyone can play, yet only those who want to gamble have to.
Or, I can set up two pools, one for the bragging-rights-only folks, and one for the $5 and $100 people.