Not really. Buying Food and Housing works in the current currency too, through inflation it's even enforced. If you don't buy it now your money is worthless.

And buying coffee is just an example for small transactions that most people rely on, people want to do small penny transactions all the time to buy food not in bulk but as they need it. Buying in bulk is usually bad not only because it's happening due to the failing economy but also because it leads to more spoilage and rotten food being thrown away. That's bad for the environment.