|I did a 50 hour course and in my experience, that money could have been better spent.
A season on the dock at a decent operator will 'lurn ya a lot more about stuff that WILL get you a job flying floats.
On the dock, you will learn about how the business runs, is it charters or a fishing lodge operation? What do the guests/customers want, appreciate, hate. How does the owner want his equipment operated? All kinds of things that you will not find in any 50 hour course I have seen.
Take the 15K the 50 hour course will cost you, spend 1/3 of that investing in a road trip to get a dock spot for next season. The other 2/3 will come in handy subsidizing your dismal standard of living on what you will make that summer and possibly the summer after.
In my opinion, a resume that says you know how to fix outboard motors, build docks, repair propane fridges, cook a shore lunch and have actually seen, rode in, loaded, cleaned, caught, launched and wiped puke off working aircraft in a float operation is light years ahead of one that has a license and a 50 hour course.
A decent operator will not only teach you these things, but once you know them, and can do a half ass job of them, would encourage you to come back and fly for them the next year.
Everything you will learn in your 50 hour course will be taught again by your employer anyways, first by watching and talking to those doing it and then again when they decide you can be trusted with an airplane.
Not to disparage all 50 hour courses, but, for the average pilot starting out, 10-15K is a lot of dosh. When I look back at the return on the investment, it doesn't really add up. I was no further ahead after a season then the guy next to me who started the season with a 7 hour float endorsement. As far as claims of a 50 hour course leading directly to a flying spot, I'd put it up there with the 250 hour guys flying for Jazz... Sure, it happened, but we're talking lottery odds.