I still remember the guy from my local con that would have a little 2-wheel dolly and 3 milk crates stacked up containing all his books and figures. He was a player, so much may have been overblown.
I wonder if these would be better than Dungeon Tiles in that you could prepare them ahead of time with the clings and such, then just pull out the ones when needed and not slow the table down building the tiles.