Let's say you have invites to two parties that advertise "free drinks!"
At the first party, there's simply an open bar. At the second party, though, you have to bring in your tax return, fill out a long form, and register to receive a cocktail grant in a given amount based on your annual income.
Once those funds are drained, you can then become eligible for vouchers to pay for further beverages up to a predetermined limit.
Which party sounds like more fun? Which will be better attended? And which one is likely to be more expensive for the hosts?