[pfarnsworth]

Of course Uber is a marketplace. A marketplace doesn't need the ability to set prices individually. Abiding to pricing standards are the conditions to offer your services on their particular marketplace. Don't make up rules that don't exist.

[madeofpalk]

but I can't "shop around" on Uber. I don't get a choice of who provides me a service.

The concept of Uber being a marketplace is utterly ridiculous.