There's no need to full quote a post to which you reply immediately below it. I don't know anybody who sells real wallet.dat files. And I highly doubt that any wallet.dat for sale is legit.

If you're the owner of a legit wallet.dat file with private keys that control some amount if coins and you can't access those coins because you forgot the wallet encryption passphrase. Then why sell it? Nobody sane would offer you more money for your wallet file than a reputable wallet recovery service like https://www.walletrecoveryservices.com/ would give you in return in case of a successful recovery. I.e. it makes more sense to try a wallet recovery than sell it for a much lower price that someone would offer you.

Stop chasing "wonder wallets", they're very likely all fake. Seller profit from gullible buyers... multiple times!