For one, Amazon is not that dominant in the first place (Google has 80% of the world's searches, Amazon has nowhere near 80% of e-commerce -- estimated to get to around 20% in 2016).
Second, they can't really use their (non)dominance in Shopping to sell kindle fires. At most, they can promote them to their users. Most of which haven't bought one, and wont buy one, according to number of Amazon users vs estimated Kindle Fire sales numbers.
For one, Amazon is not that dominant in the first place (Google has 80% of the world's searches, Amazon has nowhere near 80% of e-commerce -- estimated to get to around 20% in 2016).
Second, they can't really use their (non)dominance in Shopping to sell kindle fires. At most, they can promote them to their users. Most of which haven't bought one, and wont buy one, according to number of Amazon users vs estimated Kindle Fire sales numbers.