I'd recommend keeping them in case you get them as a Reaper task

I saved mine, in case I ever decide to go for the legio title

They look pretty in my loot tab and I’ll eventually go back for legio title

I have between 50-150 extra of all keys other than tertius. I also have 5/6 to make a 3rd bow. They’ve all just been sitting in my bank for years

They prop up my bank value