Happens all the time. I wouldn't worry about them.
When was the last time you saw a vesta?
People buy them, play with them a few weeks and dry dock them.
Gives cryptic money. Meh
The last time I saw a Vesta was two hours ago. I was staring at it from the bottom of a Gravity Well as IKS Norgh'a'Qun exploded around me. It was the only ship I faced in that match that I could not kill.
"Freedom is just a pretty idea unless it's backed by Force."