That practice seems to be more common in some areas than others.

I agree that is kind of lame. The guide/outfitter should have made you aware of all additional costs up front. Some do a good job of that and some do not.

I always ask before booking if the guide or outfitter's website, brochure, or other material is not clear.

And rarely will I book a guide that charges extra for leaders, tippet, flies , and other terminal gear unless it is customary for the region that I am fishing. And when I do I bring my own stuff.

I used to make a couple of trips a year to a lodge that charged additional for flies and other terminal tackle. This was spelled out in their materials. It was a great place so I just made sure I had my own stuff.

It is my opinion that anything expended on the water for the clients should be an overhead cost factored into the guide's rate but not everyone agrees.