This small chip has 8 leads, a very small pitch (for human hands at least), and contained code I was interested in reading. Since I got myself a PIC programmer that's also able to read and burn a variety of serial EEPROMs from Microchip, I did the former, merely to prove it would work. Of course, the process could have been made simpler, but I personally hate destroying a perfectly-good device.
Difficulty: difficult. Or, better said, tedious.