I didn't buy any of this, but I'm guessing it feels wet. (This machine was stocked a few months after the March 11, 2011 earthquake, when people were terrified of drinking tap water but the bottled water shortage had eased off.)
There are vending machines here at home, of course. They are huge monolithic and sleek drink machines as well as beat up and vandalized newspaper ones. Other than that, it's a bit of a wasteland and what little there is, is far less interesting and variable than what I saw in Tokyo.
I truly do miss the weird vending machines, but I actually miss even the more mundane ones like the drink machines which carried a greater variety of beverages and rotated out the options much more frequently than those I have seen here.