ULA&#x27;s reasoning was pretty straightforward. The main reason they dropped out of the competition is because the bidding was to be decided largely on price, and they can&#x27;t compete with SpaceX on price -- their selling point these days is that they&#x27;re the boring, less-risky option that nobody ever got fired for buying. This is totally a valid selling point, until SpaceX gets a longer track record, but GPS satellites are the kind of payload that wouldn&#x27;t be too disastrous to lose, so in this case going for the cheaper launch option makes a lot of sense.