Please don't buy an all pro pack with coin....

I see they have all pro packs out which cost 35k in coins. You get guaranteed 3 gold or better players. Ok, so in reality to get 3 or better gold players, you can buy 3 individual pro packs. But that would only be costing you 22.5k. You also get more of the bronze, silver, and team items by purchasing 3 separate pro packs. I see it's a bit cheaper to buy one of these packs with mut points, by why can't they be cheaper with coin. Why does it cost more?