We let GM's set their own prices. So we expect a lot of prices to fluctuate as demand continues to drive them up, or lower as more GMs join the platform.
I’m in a campaign right now that is around $20/hour/person. Over time (given good site curation) there should be development of premium GM’s and cheaper GM’s. A better analogy is more like freelancer sites than gig economy sites, since a good GM is not a commodity.
Edit: did my math wrong