...we have got a spare 2000 BC which we acquired when raiding a Tyranny of Evil storage facility yesterday
We witnessed the raid and noticed that you only took the 2000 BC and a few worthless Doom Ray weapons. We discussed it and decided that it wasn't worth our while to dispatch a fighter for such a non-consequential amount.
What, with the price of a gallon of gas nowadays. Once you add in the wear and tear on the transmission and the potential scratches to the paint job, well, you know.
Consider it a gift. Or in exchange, perhaps, for the minor entertainment that you provide us. It's still cheaper than our regular seats at the theater.
Dance, autobots! Dance!