Here in Norway, we have something called cashless. You have to buy a "cashless" card in order to buy the foods and drinks in the venues. I could see a future where this cashless are replaced with VIBs (A card that you can fill with VIBs). A good argument for why events would utilize this is that it would increase the amount people spend on venues, therefore it would be appealing for event organizers. Why it would increase spending is because of a psychological trick, people spend more when they use something other than a "real currency". Apps use this all the time, you buy a type of in-game currency with real money and use the in-game currency to buy stuff in-game.

Making a VIB version of cashless would also increase the advertisement, as everyone on an event would be forced to learn about VIBs.