Why are no players EVER happy at Villa?

It seems whenever a player has a good season with us and starts to attract the eye of the top 2 or 3 clubs, they end up 'asking to leave' or not commiting to a new contract.

Barry, Milner, Young, Downing all in recent memory.

Then you look at other teams with a similar stature, who can get players to commit to a club and don't assume the grass is always greener.

Arteta and Cahill of Everton, Bale and VDV of Spurs, Parker (signed a new contract with West Ham in January), even Villa targets such as Robert Huth and Brede Hangelaand have stated they are happy where they are and don't intend to move.

I gurarantee if they were at Villa they would be seeking a move.

It just annoys me - look at Milner and Barry now. Bit part players at a multi-million pound machine that has managed to win as much as Porstmouth have done in the last few years.

Just for once, I'd like us to have a player that is courted by others, but commits to us.