That's my goal, I want coins to actually be important, and I plan to make upgrades that really make a difference stuff like double jumping for example. I don't want the player to feel like they might as well restart the game though if they lose coins. But I want the coins to be important enough that when you get to the shop (or however I do upgrades) you do think "dang, with i had those coins I lost on lv 2" or whatever.