Had a longer, more entertaining version of these events typed up. But, Gordon's message board decided it wasn't good enough and trashed it. So, here's the summary:
I sold an item for 33k. Turns out, I sold it for 33 MILLION. I'm uber rich now. It was some stupid cargo biggerer thing that increased your cargo hold by 27%. My only regret was that I probably could have made a hop or two and made an extra couple/few million. But, after 30 million. . . who's counting!
Moral of the story, PAY ATTENTION TO THE ZEROS!!! Who'd a thunk a level 2 mission would drop a 40 million part (which is what other people had it listed at for sale).