Makes sense, hovercrafts have no parts hanging in the mud, so fewer maintenence is needed. And with everyone using the same techbase, spare parts come way more easier. In a region called Mudtown, this makes perfectly sense.
Ah, I had read that it was useful for really vivid colours, and well haha your colours are amazingly vivid. I think it is fair to say given the quality of your work it is hard to imagine 'lazy' being the reason you do anything. Thank you again for taking the time to reply.