Slightly off topic...
It will be interesting to see how well the roto-moulded boats hold up in the long term. On one hand they can handle a bump here and there, but this could mean ppl treat them worse than optimal hence reducing their life span.
roto-molded kayaks are very very tough and last very well cart wheeling off roof racks etc. mine got semi crushed under snow but an afternoon of hot sun popped it all out
of course they start to look like crap when the scratches get all furry but i bet they last longer than people want them