So after reading 99% of this thread, my thoughts go to these scattered points:
If the G7 truly have the best interest of Drum Corps as an activity at heart, they would have never called for getting rid of Open Class.
The TOC shows and upcoming MiM shows will draw some spectators away from DCI shows. I saw that when our HS chose to take the MB kids to a TOC show instead of a regular comp last year. For DCI to condone these shows has to hurt them somewhat, but they've allowed it to keep the peace with the G7 greed mongers. I see them as a conflict of interest that shouldn't happen.
If the G7 leave DCI in a hissy-fit, it may make them look bad enough that they may struggle to pull the crowds.
Members that decide to stay with these organizations that leave DCI should be well aware of the road ahead of them and the perceptions of these groups as being not the best ambassadors for Drum Corps.
And can someone please get Hop and his bunch away from DCA before he tries the same #### there, too?