@Kevin and Denman
As i stated before, the chances of FIRST using any form of water in a field is nill, hence the title "What surface do YOU Want to see?" Not "What surface will FIRST use next?" We could come up with a list with more than 100 problems a water field would represent. But while i wanted to stay with realistic surfaces, i wanted people to choose what they would want to compete on if they had the chance
That being said:
You bring up the point of rookie teams, sure it would present a problem to them to play on water, or on something that would require suspension, but what about the vet teams? Water and ice is something unknown any team, And while the Engineer mentors from GM, Chysler, and any other field(Except water craft

) could apply there basic knowledge, do you think those engineers would have any better chance of building a working water based robot than a rookie team with some skill? It might be interesting to see how those vet teams do on something completely foreign to them
In any case, I never expected this thread to get so big and have so many views, Thanks everyone!