Adelson may be a partisan hack and is certainly no friend of the conservative movement (backed Gingrich first, then Romney, neither conservatives), but he isn't even in the same sleazy league as George Soros. I don't think he even has a significant fraction of the Soros wealth.
Example: Diet Coke Mix - 4.36, makes 12 liters. That's 6 two liter bottles. Just by itself that put is at about .73 cents for a two liter bottle.
A carbonaor is 15 bucks and needs to be replaced periodically. It lasts for 60 liters. So that means it adds another .25 to a two liter bottle.
So just for the needed ingredients it costs just under a buck to make a two liter bottle of diet coke.
Add in the cost of the machine and that puts the price over a buck at least until the cost/benefit balances out and then it drops to just under a buck again.
I can buy a two liter bottle of diet coke or pepsi on sale often for a buck and I don't have to do a thing except buy it.
What is the practical benefit of this machine???