In message , at 17:25:39 on Sun, 2 Oct
2016, Neil Williams remarked:

In the sense you ask, because the only product being cherry picked
from Uber is transport *here*, whereas the thing which isn't in
fact being cherry picked from Amazon is mail ordering a specialist product.
You can of course also compete with Amazon using Amazon's platform!
Only in a small subset of products, preferably ones not available
via Amazon Prime.

You can sell any product on Amazon near enough, regardless of whether
it is offered via Prime or not.

Yes, but we appear to be drifting from competing with Amazon the
platform, to competing with Amazon the retailer selling a limited number
of things via its own platform.
--
Roland Perry