It obviously wouldn't be nearly as lucrative but these no-payout virtual slots could easily avoid exploiting people by simply selling access to these slots with

It obviously wouldn't be nearly as lucrative but these no-payout virtual slots could easily avoid exploiting people by simply selling access to these slots with a one time purchase. The whales would probably still purchase every slot available but at least you set an a cap on how much they can spend and they can still get their fix.