This throwaway mindset is what causes schools to fail. Zero loyalty, and thinking only in selfish terms of equating your bjj training to simply buying a product... and if a more enticing deal comes along, leaving your old gym behind and taking all that mat experience with you.
I may not have to worry from a personal financial aspect if my gym fails, but Id be devastated as my instructor is both a good friend and devoted part of his life to making me better at BJJ, I wouldnt want to train anywhere else, regardless if the instructor was higher-profile, it was cheaper, or it was closer.
Bjj schools fail due to bad work etiquette, bad instructors and many other factors.
Blaming customers loyalty is actually a bad way to run a business.