When I mined my first block of bitcoins a couple years ago (back when I could use the GPU on my aging laptop and still have a chance to mine a block) they were

When I mined my first block of bitcoins a couple years ago (back when I could use the GPU on my aging laptop and still have a chance to mine a block) they were worth about 5¢; I sold a bunch when they were around $5 because I thought that was ridiculously high, and the price was sure to collapse. Silly me; had I not sold them, I could have a few thousand dollars from a couple of days worth of GPU time.