Over here in Australia we often tow our boats long distances, my last trip towing my fibreglass boat took us over 14000 klm, the trip before was 9000 klm. Both of those trips involved some off-road where fine red sand finds its way into everything which isn't sealed down, also i normally end up with a few gelcoat chips (easy to repair).
Now that Ive recently bought a zodiac 550 my plan is to do more trips but in more remote areas which involve a higher percentage of off-road travel. So the question is would it be a good idea to remove the tubes and if so are they going to be easy enough to put back on with just myself and a very handy 14 year old daughter (there are to younger kids but less handy!)
When I bought this new boat it was 1200 klm from where I live and towing it inflated seemed to have no issues, do people leave the same pressure for towing as on the water. Many of my trips are to this location which is a 2400 km round trip.