I checked out your site CC and I think it looks pretty good.
I still question whether anyone would pay your fee. I can't imagine any circumstance where I ever would. Your price-per-person for a group of five could buy a copy of any of the published adventures on Amazon with some change left over. And the adventure would provide at least 4 4-5 hour sessions. For a group of five it places the cost at roughly $1 per person per session to run an adventure like that for themselves (free now that
WotC has put up
KotS for free). I understand the value of not have to prepare and run the adventure yourself, but the cost difference between $1 and your $25.20 per session would place some big perspective on the value of having you run it instead of me. Especially considering now that most opinions (even those who dislike
4E) center on the fact that
4E is easier to run and more fun for the DM.
I wish you luck, but I'm still not seeing the market for this type of service. Too many people provide this service for free.