As someone who has done this a few times, I can tell everyone that it is very much worth the cost! I currently have very young children and the financial constraints that come with them, and I really don't see that changing in the next few years; I'd sign-up in a heartbeat otherwise!

Great idea, Ron - hopefully you'll garner enough interest here, then I can come along for the second (or third) kilted river trip.

Also, which company were you thinking of? I've only ever been down with Hatch, but it was such a great experience, I never saw the need to consider anyone else.