I hear ya! I'm not OCD or anything like that. Few things really bother me. But if I stop playing before I got all of them, it eats away at meSame way. If something reads 99.9 percent I'm going to 100% something. IF there's a category to fill in, farm for, or locate, I will do it as well. I'm a perfectionist when it comes to platforming games of this nature. Can't help it, was built into me from an early age.
I'm the exact same way! I hate the feeling of leaving something unfinished... especially a 60$ gameEach player plays their own way. I love seeing completely mastered games, all achievements, everything capped out, all DLC beaten. I like to feel like I've milked every last cent of the games I have.