The loot boxes

I have been playing leagues for a very long time and I have a lot of hours. so I have all the champions even the new ones. So when I open a chest and get a champion shard the only thing i want to do is throw my keyboard.Especially because I seem to have this 20 champs to 1 skin. I know this is a free service that you guys don't have to do ,but it would be nice to see something like when you get all the champions the chance to get a champ shard is lowered.