What do you all think of Ghost Hunter Teams selling tickets to join investigations?

I just found out that even though taps don't allow investigators to charge for the ghost hunt, they can actually sell tickets to people or other ghost hunters to let them join in on the ghost hunt and be a part of the team for a night. I notice that Taps members go to different paranormal groups and i guess that really boosts ticket sales and netting the taps member and local ghost hunting team some spending money. In one way i see nothing wrong with this but in another.......hmmm....

What do you all have to say about this?