You left out an important fact...... (easily found in the same article that talks about the rent free offer)
Even after that offer, their expenses still far outweighed the expenses that would be incurred at Mason. Given the crowd that showed up (or didn't show up) for that game, the business decision made to not play at Nippert was a wise one.
EDIT:
Sorry cinfifbfan, didn' see that you addressed the same jsut above.
Look, I don't have a problem with Mason for this game. Until proven otherwise, as much as I hate it, Nippert is probably out. Having said that, I do think the vast majority of fans would prefer Nippert and if it ever gets back to the point where a game may justify it - maybe even a Colerain - X, or Colerain - Elder Regional Final next week, I do think the OHSAA should consider it even if Mason is the easy and safe choice. I think the OHSAA has an obligation to the players and the fans even if means that they may make a few thousand dollars less.