Presumably because that only happens when it crosses a threshold dollar amount, and $0.80/month isn't enough to get it over that threshold. (That price is too

Presumably because that only happens when it crosses a threshold dollar amount, and $0.80/month isn't enough to get it over that threshold. (That price is too small for there to be a running instance; it's most likely for storage belonging to an instance that was shut down, such as a 16GB EBS snapshot. It is reasonable that Amazon would be very careful about deleting that.)