Fun fact, house flipping would die just as much if the timer wasn't random or hidden. Give it a 24hrs clear and shown timer and all you'd get is a frantic clicking war at the last second by roughly 100+ people. You wouldn't be able to flip a house if the buyer had to wait 24hrs just like everyone else.

Biggest con is that 100 people is an optimistical number and it might get too crowded for Console Players. But at least it's quick and you're not stuck in front of a Placard hurting your hand.