Not Motley Fool, but another similar one called Risk Hedge (Stephen McBride). Been noticing a lot more of these 'disruptor' investment advisers recently, it's like the new buzzword. What you describe is almost identical (initial low cost for the 'general' picks, and a $3k upsell to the REAL disruptors), I'm curious if it might be all the same between MF and RH just branded differently. RH sends out a monthly email, in which they select a new company set to 'disrupt' an industry, and boy do they sell it well. Makes me want to invest in every single one. They do continually track the progress of each pick, so they're very transparent about hits and misses.
I'm open to compare notes with you offline to see if they're picking the same 'disruptors', a lot of the reports from MF and RH seem to share the same wording.