holy crap stock exchange beer prices?! sign ward and i up.
I like that too. But there would need to be random beer "recessions" because otherwise everyone would buy the first half of kegs and then move on when price went up. You'd end up with a bunch of partially drank kegs.
it sounds fun but wouldn't work. you'd end up with old beer. if you did it the other way nobody would start drinking it.
Easy ways to get around it. You only do this for craft beer (obviously).
Great example would be a limited release Boulevard. The bar only gets one keg. When the keg is out...the beer no longer will be available until it is released again the following year (Saison Brett, Chocolate Ale, Rye on Rye, Coffee Ale, etc.). As the keg gets 1/2 full, price jumps $1 or so. Nothing major but on the digital signage it shows the beer in "red" as an alert that the price changed due to limited quantity.
Also the signage is a good way to put up specials, update specials (food or drinks), announce when kegs float or are tapped, etc.
I've been to a few brew places recently that print off (or write on chalkboards) their current beer lists and every time I seem to request a beer they no longer have. They go through a lot of lists and can't get them updated fast enough. Digital Signage and/or stock market method would give them an easy way to keep their lists updated, as well as create a fun environment.
Also beer specials are equivalent to the "recessions" you all are talking about.
"Excuse me, what is your happy hour special today?" "Oh sir, our
recession beers today are "blah blah blah."