That's decent money for a player that clearly isn't going to sign a new contract and who we will lose for nothing after a season.
Wenger has got himself in a mess over Sanchez.
He knows if he sells and doesn't adequately replace him, the supporters will be rightly unhappy but if he runs down his contract and lets him go for nothing, possibly to another PL club, that would be worse.
If it's true that Bayern are willing to pay that, I would take it, and spend it, as well as the other 100m or so we have swilling around in the bank, on two or three top quality players.
If we do this, at least it might persuade Ozil to sign a new contract.