Shopping for a new Echo, Kindle, or other Amazon product? You may have to shell out more for the item than you would have less than a week ago. Late last week, Amazon raised prices on several of its key products, according to a review by Fortune . The increases affect a few categories, specifically Echos, Kindles, Fire TV sticks, and Amazon eero routers. Looking at the sheer percentages, the price jumps vary. But with the 5th generation Echo Dot, for example, you'll now pay 60%...