What does merit exactly give or do? I can see it's some sort of a reputation form, but does it give any advantage expect that?

Well, I'm still young so all my money right now goes in parties and drugs hahahah. I know I'll regret it in the future but you only live once so.

I don't need them currently, good lighting in my office, optimized night light and the monitor brightness at around 20%.

I use SteelSeries Siberia 100, bought them few months ago and they are perfect aside from one factor to consider. If your ears are a bit big you will have some aches after wearing them for a time.