I think you're most likely to succeed if you can provide a quality service in a constrained market.

In my specific case, the choices available are to either go to the vendor and pay more than 100k to get all the training for 10-15 people simultaneously, or to find someone who's been through it already and mind-meld. I've found one other group who is doing something similar to what I'm thinking, but their offering is laughable (machine voiceover!).

I believe I could easily charge 1k-2k per month for site licenses of well constructed materials. Maybe quite a bit more, especially if I offer custom materials for clients. The foundation would be shared across all though.