DLC for Last Round has been an ongoing affair. Currently in its seventh season, the total cost for all of the game's DLC is an extremely affordable $633.
Important subtext to this: the cost of acquiring all DLC is measurable in clear terms. A good thing people have taken for granted in recent years. Can't say this for all these loot box games where the average cost for acquiring all DLC or even just individual skins may well be higher but is obfuscated by hidden probabilities and people's flawed intuition for chance.