Things To Come...........

I thought the definition of "legal tender" was that it must be accepted...?

I could understand saying "exact change only" like on a bus, and all cash received goes immediately into a drop safe... but I am 99% sure that a business "has" to take cash if it is offered.

Might be wrong though, it happened that one time before.

The "Legal Tender" laws only apply to debts already owed. A purchase in a store is not a debt. You will have to leave your product on the counter and walk away to another business that accepts cash.

WOOHOO
Now all My Monopoly money might be worth a little bit more than...nothing

I've been saying this for a long time now. Cash is on the way out completely.
Some time ago my Son showed me how he uses a credit card for everything. Gas for his car, restaurants, food stores, hardware stores, etc., etc. Even in Illinois the toll roads are about 80% cashless. And if you do use cash, there is a fine so you pay double. Illinois is already penalizing people for using cash.
My Son hardly ever carries any form of cash. He has his own buisness and likes all those statements from credit card companies. Great for documentation. He now has me doing that too. I seldom use cash anymore for anything. Of course in a store for a dollar I do use cash but I've seen many women pull out a credit card of check book for a 2 dollar purchase.
And credit card companies are more and more rewarding the use of their cards by giving you money back for what you spend. One card I use gives me one cent for every dollar I spend. Sounds trivial but better than nothing.
With intercontinental trading increasing all the time, our monitary system will just have to be abandoned. The entire world will eventually have to use one monitary system for simplicity. Either that or all transactions will be electronic. It is the only solution to the mess we now have with everone wondering how much something is in another country.
NO cash is really on it's way out.

There doing voucher machines now. Some AC and LV casinos are converting as we speak. A lot of new California casinos went coinless from the git-go.

We have vending machines that take cards down here for cokes now. All the riverboat casinos I've been to put your winnings on your token. And big amounts come out as a slip of paper to take to the window (where the nice gentleman in the suit from the IRS is more than happy to help you out).

A coinless/cashless world? Don't worry I don't think it will happen in the lifetime of any members. Most of the replies have had an American bias but what about the rest of the world? Can't see the poor of the world taking up cards (and who the **** is going to issue them?) or doing transactions online.
And if the US ever does go cashless that means you'll eventually have to come over to the darkside to get your fixes, which means my collection is going to be worth a lot more...mmm maybe not such a bleak future after all.

The U.S. Greenback...The $100. dollar bill IS the currency of the world.

There is virtually no place that will not take U.S. money.

We have a very long way to go before the world has one official currency, never mind "cashless".