Almost every NYC Uber driver I've had recently has at least one of the other apps installed and picks up rides from whichever is offering the best driver incent

Almost every NYC Uber driver I've had recently has at least one of the other apps installed and picks up rides from whichever is offering the best driver incentives at the moment. And every Via and Juno driver I've asked bought their vehicle to drive for Uber and then switched. That's my point: Uber has done a lot of the hardest work for their competitors, but now has to match them on price or watch them eat away at their market. I don't see any strong network effect – what's the advantage to me as a passenger or driver of using Uber because you use Uber?