Their transfer policy matters in that it makes him even more valuable to them, likely to make him more expensive than if he played for another Spanish club of similar size. Since it's almost like playing for a national side for many of the players it makes it less attractive to leave the club, so it makes it less likely that he will come and a lot less likely that he will force a move - especially to us. That again could make him more expensive.
They are in the process of building a new stadium - a large cash offer could tempt even the hardest of purists.
They have sold players before, mind you