Valencia director Juan Sanchez insists the more goals Villa scores at Euro 2008, the higher his price will be.
Sanchez said: "He has a contract and is having a great Euro.
"We are calm and we hope he will continue to score many goals. You never know what will happen if we get offers. It's not a question of putting a price on him. What will come in the future will be assessed then."'
Villa, 26, insists he is only thinking about Spain's Euro 2008 bid.
He said: "I'm not going to speak about my future until after the Championships."'