While I do understand where you're coming from, someone being better at something shouldn't stop a person from doing what they love.
There are millions of people who draw better, sing better, dance better, write better, play video games better, design websites better or just do anything I can do better than I can... and that's fine.
I replay the "Metroid-vania" Castlevanias every few years (SotN, GBA/DS games), and one of my goals is always maximum map completion... obviously not required for actually beating the games, but I only consider the game completed if I get all the rooms on my map.
More specifically for SotN, I also gotta get the Crissaegrim + Medusa Shield otherwise am I even playing the game properly?
Some of the others I try to get all the doodads: cards, souls, glyphs, whatever. Some are a bit more annoying than others, so sometimes I'll skip out on the really annoying ones if I don't get it done before filling in the map.