Im not a huge player of eco, but if I have an item of value, I do /ah sell <price> with an item in my hand to sell on the auction. Otherwise, voting and using crate keys gets you lots of cash.
this wasn't a serious thread just exclaiming how stupid cheap casinos are and how profitable they are
update: just made a casino in 3 minutes and quadrupled my money by only saying my autoadvert twice while openly saying it probably wont give any profit