Just a suggestion because vote parties don't happen often enough.

 

Voter keys don't have much value because of how many there are, there is no reason to put more into the economy.

 

Vote keys don't have value because they're not valuable. More often than not they give you junk, so the price is going to reflect the expected return value (no one's gonna sell them for less than the grass they could win from them, and no one's gonna buy them for significantly more than they could expect to win from them). The grass+keys is valuable to newer players.

 

This is not true for all keys, especially on the Economy server. Most keys are significantly overpriced for the expected return you'd make spinning them.

 

I am usually able to pay 32g for a stack of common or a stack of voter keys. 75% of the time, this makes a profit, just yesterday I used only like 20 voter keys and got like 5 rare keys and 15 g and some glass

 

This suggestion is tagged for survival, and I was talking specifically about vote keys. I'm unfamiliar with the rates on economy or for other keys, but those aren't really relevant to the original suggestion.

As far as I'm aware (and can be confirmed by visiting various shops in the ads page) vote keys go for between 0.5 and 0.666 grass each (2 for 1 or 3 for 2 are the most common prices I could find, and are what I remember them being for years at this point). I haven't done a full EV calculation for every item in the possible prizes, but when most of the prizes are dedicated to cobblestone or dime-a-dozen items like pickaxes, glass, or cookies, there's a reason we don't see people buying them by the DC and opening them.

All to say, I stand by my original claim that vote keys on survival are valuable primarily to newer players, and that a few more floating around probably isn't going to particularly affect their value in the economy (though why it would matter anyway I'm not sure).