When I was a non boater I always gave at least 20$ or more, Now the circut I fish nons do not get the front half of the boat, used to some tourney's you had to share the front and spots with the non boater. Now I do not ask nor demand money from my non boater's but will not turn down any offering. With gas like it is it is nice when they contribute or pay me a little. I know it is tight on all now so do what you can to help the boater. It is a least worth 20 bucks just to get to ride around the lake and be away from work.