The game is not too shabby so far, but this is definitely one thing that'll completely ruin the game (at least for me).
I get the idea that Aeria Games needs to make money off of a game, and that in general, they're not the "worst" when it comes to cash shops and what not. But they should honestly speak with X-Legend, and get them to actually add some armor/equipment apparel. Strictly being bound to costumes as to how your character looks is kind of... Well, in more appropriate words then what I was thinking... "Silly".
Sure, you can "Rent" a costume using the Loyalty points, but, I'd much rather keep a costume rather than having to keep "Renting" it, and or being forced to spend cash (even though money is no object to me anyways).
I've just started the game not too long ago, maybe an hour, but is the cash/loyalty shop the only way to obtain costumes as of now? Hopefully not, definitely wouldn't be worth sticking with the game if that's the case.