In terms of collecting focuses, I guess mine are probably fairly common.
1. I'm just setting off on the journey to build a high-grade competitive registry set for The Joker (1975), called "Eat Your Hearts Out!". Even though this run has only a fist-full of books in it, I expect that it will take some time (and even more luck) to complete in high grade. The census numbers for 9.8's across the set are both dauntingly, and excitingly, low.
2. For fun, I am collecting The Joker vol 2 (202