If you ever relinquish majority ownership of this company in exchange for funding, it will eventually become "Timeshares But As An App".

Your approach might be more principled than the way timeshare companies operate. But it also sounds like you're leaving a lot of money on the table, compared to the way timeshare companies operate. And investors won't let that continue if you can't convince them that your approach will somehow make more money than timeshare companies.