"February is a slow month! We're gonna make this deal sweet for you by lowering prices 20%!"
"March Madness, 20% off all rides!"
"Summer Special, 20% off all rides!"
"Summer Special is here to stay! 20% off all rides is permanent!"
Now, lets not kid ourselves here. Uber is always going to get their cut. If you talk to any Uber driver (I was one of them at one point in time), they'll tell you their hourly wage has dropped from $30/hr to about $18/hr now. Still not bad, but now factor in the longer hours, the maintenance fees, the city fines...not so much a good deal anymore for the other side.