I had a great big response with a summary of the rotomolding process and a list of companies that recycle polyethelene, but it seems to have vanished durring posting.. Either way it looks like polyethylene is recyclable, however costly. I have some time during lunch, since they don't let me work through lunch anymore, that I can use to reserach the environmental impact of roto vs fiber.
With that said, I'd be interested to see some regional sales charts (you know the pretty colored ones) that show the sales in various regions. I suspect the resort areas would see the highest volumes. I've only ever seen them at resorts and the ones that have been sitting on the Hobie dealer's lot. I've only ever seen glass Hobies and one Nacra on the lakes that I frequent.
When my parents went to Jamaica, for their 30th anniversary, they commented on the number of cats just piled up in a small fenced in area on the beach. They then waited 3 hours for a short ride on a Bravo. I honestly think that they replace rather than repair.