Maplestory "High Five" Private Showcase

Do they take a lot of exp at the lower levels?

Also any guesses at what nexon will do to make Arcane Symbols pay to win?

I can't remember, but if I have to guess 8% per symbol? (You use the symbols on an equipped symbol to increase its EXP)
The symbols I used were from the Road of Vanishing though, you also have other symbols from the other two maps, but they're unreleased at the moment. Maybe they give better EXP.