Great game, but I assume that there's some kind of hidden or bonus ending with the extra items? I wanted to get it but the grind is just too much...
You can get like 25-ish sticks from a run, but you need like a thousand to get all the end-game items, not to mention all the mushrooms, berrystone, and stone etc.
I might have missed something, but otherwise, maybe consider adding a way to get more stuff, like an upgrade that multiplies your gain from certain items. This would be a good way to allow the player to use resources that otherwise become useless after a point.