From what I remember from earlier, money from the Mogstation allowed for the purchase of the EU datacenters, so if the money from Mogstation goes back into the game to improve it like that, I dont mind buying an item now and then.
At least its not like Blizzard where ALL the unique mount designs are Blizzstore only while ingame is a complete recolor of an old mount etc, and none of the money from their store seems to ever have gone BACK into their game. Most likely that money went into Overwatch development xD