The folks who started Epsilon are working on a Delta camp for younger kids (6-7) for next year which could also be an option.
I'm not sure how much a kid with access to two PhD math parents would get out of a math camp. For a kid without such access, mathpath was quite special. I don't know if I would call it life-changing, but it was definitely worth the cost. I do think my child would describe it as the best 4 weeks of life so far -- and just asked, my child would also say it was life-changing.
My sense of these camps is that they aren't for math talented kids, although the kids there are talented in math. They are for kids who LOVE math and who are excited about anything John Conway has to say, who spend free time thinking about mathy things, and who love learning math. I suspect that many kids in the top 0.1% do not fit these criteria and would be disappointed. For the kids who love the math itself, I think these camps can truly amazing.
