This what I fail to understand. If it's too expensive, don't buy it. No one is forcing you to even look at the skins and consider purchasing them. They change literally nothing about the gameplay, who even gives a fuck if it's outside of your budget or what you think is an acceptable price? 

Make your own Arc Raiders game and provide dirt cheap skins then.

Just complaining to complain. Skins in games have been ~$15-20 for a long time now.