No ship should cost any real world money to buy. If the stuff you can buy in a game with real world money can give you an advantage over other players or unlock parts of the game faster than players who don't pay real money for it, then it's meaningless to say the game itself is "only 45$". The ships make up a huge chunk of the game and you can pay 48k to obtain them all immediately, or rather, not you because statistically speaking you're probably poor, so you don't get the same game for 45 dollars, not unless you want to spend a fucking loooooooooooooong time grinding in-game (based on what I've seen the time needed to grind for enough money to buy even one high class ship is ridiculous). Meanwhile richer players get to fly in circles around you in their better more expensive ships from the start. You get access to less of the game than them.

Also, 1.2k for a single video game spaceship in a game that hasn't even been officially released yet is disgustingly predatory enough on its own.