The free one gets people in the door. Cheap is could be something like a book or paid tool or course. And the "expensive" would usually be consulting but could also be a more premium tool or retainer service.
So your suggestion seems to fit the model.
I know LLMs will change the developer education landscape but I really hope it doesn't kill it. Interesting times.
It might be interesting to have a list/map of WISPs on your site!