1. Amazon already has your payment information. I was on my phone looking to order something. The first link that came up was Walmart. I went and searched on Amazon because I could just press “Order Now” and not have to create a new account and dig up my credit card.
2. I’m already paying for Amazon Prime. Why not get full use out of it for shipping?
3. Amazon marketplace has network effects. Third party sellers use it because the buyers are there.
4. I wanted to rent a movie on my Roku TV. Again, Amazon already has my payment information and I’m already signed in to Prime Video.
5. I get 3% discounts on my Amazon card when ordering from Amazon.
I’ve been downvoted to oblivion plenty of times about being against the government interfering in $BigTech whether it be Google, Amazon, or Apple so I’m definitely not proposing they should be broken up because of a “monopoly”.