It was about the same for Spirit Miner. I have a lot of "garbage" legendary cards I got for pennies that are worth a used car or the down payment for a new one now.

That's why I haven't sold Djinn Biljko yet. He's worth more than double what I paid for him just a few weeks ago and seems like the worst card I own, pictured here

... but time always tells as evidenced by the fact that he's already worth x2 even being the kind of guy you want to see fucked in the neck until dead.