Because it's a little upsetting to see them go.

You know we get the extra oculi from each region so that's fine but some of these event items look pretty cool and when they just disappear on us like this it makes me feel empty. This oculus item in particular took a while to collect so the memory of seeing them floating around stayed with me. Seeing 70 of these things vanish like that doesn't feel good.
Couldn't we just get a novelty furnishing of these things to kind of place in a "trophy room" in our tea pots?

