The wines I am referring to, that have corks are either real or synthetic corks. I have both types in my wine racks. The screw tops I am thinking about are the ones you find at Wal-Mart that run about $6 for a 1.5L.
As far as the $400 bottle of wine that was ruined by a broken down cork, it wouldn't happen in my house.
I would never have a $400 bottle of wine unless it was given to me or if I won the lottery.
GlockSpeed31