Free: Contests & Raffles.
They also provide a valuable service and get a lot of folks involved in fishing that probably would otherwise buy licenses. More anglers means more people to support the sport and means more license dollars to pay for WDFW.
In recent years the number of fishing guides has exploded. I'd like to see them have to pay a large tax that would go to hatcheries. Guides are responsible for an extremely high percentage of the harvest quota especially on the Columbia. In bouy 10 for example with the 1 fish limit guides are going to be able to do 3 trips a day. Why should they get to kill 18 fish a day when on my boat I can only kill a couple. Because of these guides fisheries close super fast. I'd guess without guide boats fisheries like bouy 10 would be open twice as long. Weekend warriors getting the shaft again.
Actually the best thing I think the state could do would be to have the limits be twice the size for recreational guys. This would be good for the guides too cause they could do more trips.
I would think guides have a hard enough time making a living as it is. Add a tax to them and they will have to raise their rates and they will likely lose some clients. That's a bad deal IMO.
...most of their clients do not appreciate the fisheries or the resource...
The only thing a tax would do is drive up the price of a guide trip. Guides aren't going to eat that extra fee. They are going to have to make the money some other way. Believe me there are no rich fishing guides. These guys barely make ends meet. You want a longer season? Follow the fish up river, find other fisheries, do as the guides do and be diverse. There is a ton of opportunity for salmon and steelhead in WA year round. Just go find it.