Tell them that you've actually got your own company and you'll be happy to hire them as a marketing team and give them each performance-based compensation based on the revenue they bring in for you.

Or, to be less inflammatory, tell them you want in. You're the one bringing IP and a customer base to the table, so you'd like to have an equity stake at least equivalent to theirs. Don't let anyone who may or may not have any ability to implement jerk you around.