My idea is simply to script a trade sign to activate a switch via payment. This would allow users to set a price and place the sign on a switch or redstone. Clicking the sign would deduct said amount from your wallet and activate the switch or redstone. This would be useful for dispensers, doors and annoying casinos. Thank you in advance for consideration.
It is very possible, and I think it's already partially implemented into essentials if I remember correctly.
Wait, so if you're selling redstone in a sign for let's say $2 each, and you're charging a $1 sale fee, I'm paying $3? I don't think that is such a good idea... -1
Ah, okay. So it is basically something you pay for to activate a redstone switch? i.e. I would pay $50 to turn on the redstone current.
Yes, I suggested it and KH commented saying "You make it" basically. (lots of paraphrasing, but you get my point) Somewhere in 2011, when I didn't know what I was doing.