"Yet why send hundreds of millions of dollars more to cash-strapped Russia
when engines from three American companies will be able to launch
rockets that can do the same job as Russian-engine-fitted Atlas V
rockets? At about $100 million a launch with an American-made rocket
compared with ULA’s $400 million a launch, that’s a bargain in more ways
than one."
-- Ron Wahid in a Wall Street Journal editorial titled "American Plays Russsian Rocket Roulette." The three American companies he mentions are SpaceX, Aerojet Rocketdyne, and Blue Origin.