On Mon, 25 Feb 2019 12:34:14 -0800 (PST), True North
wrote:

The point is...I'm paying to have someone advertise their product to me. I know the dealers pay a rental fee for space at these exhibitions which should cover costs. Anyway, they boast that they get close to 50 thousand paying visitors so I'm in the minority for sure.

Ours seem to be a mix, some are free, some you pay for.