Amazon will only move into a market via acquisition if it is cheaper/more efficient than doing it themselves. My bullshit analytics tell me that is not the case in Nigeria (I don’t know lots about other markets in here). I, the typical mid-high income young Nigerian internet native, have bought more from Amazon (in both volume and value) in the past three months than I have from Konga and Jumia combined in the past year.
That should tell you something about the state of e-commerce over here.