Originally Posted by
Hrkdrivr
How about those of you whose roller bag wheels screech/clunk/clatter/drag down the concourse...
BUY SOME NEW WHEELS!! 
In my case it wasn't the wheels. Made the mistake of putting my Purty Neat Bag below on a DH. They must've run over it with a tug to bend the metal frame. Ended up replacing the bag. Never put one below on a DH again.