EVENT COST: Distinguish between venue vs organiser. Also full vs concession.
Meetup Organizer commented
I'd expect a well written event description to explain the total cost(s), but the world is not always simple. For example we had a meetup event where the host paid $100 for a group campsite of up to 8 tents, 50 people and 25 cars. There is no way to know how those fees will exactly fall - the only obvious fee was "$6 per car" to enter the park. However the host wasn't eager to lose money - nor should they.
In an ideal world, the event could be set up to charge $10 per car, $6 per person and $5 per tent. However if 10 people came in two cars with two tents ... the host is out $10. If 10 people all drove solo... anyway it is complicated and waiting to split costs AT the event doesn't work. I was once in an event where two campsites were reserved (non-refundable) at $32 each. 12 people signed up, TWO people showed up. What looked to all like about $6 each ended up costing us $32 each.
I learned three things: 1) Charge in advance, non-refundable, 2) Charge MORE than the actual cost. You can never know how many people will actually sign up. 3) Others are eager to join if they aren't doing all the work and laying out the cash in advance [aka hosts SHOULD be paid!]
Currently organisers can specify payment amount but what if the venue charges and not the organiser? Members don't care who is collecting, they just want to know the cost. Also some venues have concession prices but MU does not allow for this option.