Paying 20-50$ for a recolored version of a skin I already have is too much and is a difficult decision to make.
"Don't buy it then". Yes, I won't.
My suggestion can lead to win-win result for both players and Intrepid.
For players who have already
bought the skin, the recolored versions of it should be sold for them at HALF the price(50%).
This way, they will feel more encouraged to buy it, rather than not bother at all.
Giveaways, gifts and freebies don't count.
And if you want to exclude exclusives, I think that's fine too.