I've mixed opinions on that. For example, there are products like Google Shopping or Google Travel etc. They show up bunch of stores where you can buy a flight ticket or a particular product from.

However, in the end most people just end up buying it from top 2-3 marketplaces anyway, not because its cheaper, but also because they can trust it, it arrives in 2 days, and you can easily return it if you don't want. So if I'm going to most likely buy something from Amazon anyway, why not just use Amazon web page. They've had one click buy button for ages.

> However, in the end most people just end up buying it from top 2-3 marketplaces anyway, not because its cheaper, but also because they can trust it, it arrives in 2 days, and you can easily return it if you don't want.

I've got enough complaints about the amazon customer and user experience that I'm not going to list them here, but returns are so easy.

I click the button, and then I don't need to print off a shipping label or even package the item back up, I just drop it off at the convenience store by my house, they scan a QR code on my phone, and take the bare item from me.

Yes Amazon’s power is very difficult to overcome. The hope with my marketplace is that stores will offer cheaper prices since we are interfacing with them directly and they are not paying Amazon a cut.

Also, Amazon Prime is affordable now, but it will get more and more expensive. They have a large distribution network but most of their drivers are contractors. Amazon also is not as powerful in non-Western countries. They still rely on many different websites depending on need.