Amazon may use Atlas but they won't buy Atlas. For one thing Atlas is mostly a 747 operation and Amazon does not need the volume but they sure need the lift and there are a lot more economical airplanes than the whale. For another Amazon is famous for negotiating very low margins for their carriers. Here at purple the margins are quite low and are reported as such so why should Amazon exposed themselves to a high leveraged operation when they can use sheer volume to negotiate costs down?
I do find it interesting that Amazon hitched their wagon to Atlas for a bunch of 767's that Atlas does not own.