All wallets are empty ofcource but people that take forks out of coins know how valuable sush a wallet is ..
we can use escrow
example how a key comes this one is already been used for taking the forks out of it..
https://blockchain.info/address/18VxeqVC9C1oQEh164GQhLnWvLiLPuc4brBids are per wallet. I can guaranteed no forks are been taken from any key i sell you! i have 900+ keys
All wallets had min 1btc and max 27 in the wallets and made transations that block
Start bid 1 key = 1btc