One of the ideas on the table is encouraging local businesses to join as well!
Imagine a bar downtown has a band but they are no where near capacity and while they might have a $20 cover charge they could absolutely push out an offer to the network to offer “free ridesharing” to/from the event — or some max “credit” amount to offset the total round trip price.
They could even stipulate that you needed to bring a friend! And then arrange to have the driver pickup the additional people on the way!