Here's an experiment for everyone here. Take your worst, crappiest deck - not something you've beaten to death but a brand new deck that handles crappily. Give each card a fine dusting with fanning powder (use fine talc if you can't afford it/find it), brush them off then put them unboxed in a card press for a few days (or under a few heavy books if you don't have one).
Tell me how they handle after you've done all that. I'd be curious to see what improvements if any would be achieved.