I've never purchased any "cosmetic" DLC in my life, and I don't ever see myself spending actual money on them (or this game), ever. But I DO care. Why's it my problem you ask? Why should I even care? I'll tell you why, because it's setting a fucked up example, that's why. DLC already comes in enough malicious forms. Skins are something that should be: unlocked, cheated in, done by the community, whatever. Or just plain free. Unless the base game itself is free, or at least cheaper. This is freaking skins in a full-priced game, which always used to be free. That's why people are excited.
Of COURSE you have the option to just not pay. But this is shitty practice, and opening the floodgates for more of this type of shit in the future by other game companies. And any and all calling out of it is well justified IMO.