I don't see what the advantages of doing this would be, but, anyways, it's fun to know!
It's for taking a deck that would normally handle like total crap and getting better performance out of it. It could be a lousy dime-store deck or it could be a Massa deck that's been used a little too long, or any other deck where the cards themselves are in good shape but the finish keeled over and died.
Time consuming: yes. Saves you money on fanning powder and new decks: yes. And makes your cards smell fresh as an Irish spring!
For you and others living north of the Rio Grande River, getting a pack of Bikes is no big deal; they're everywhere and we scoff at the quality of them. But go somewhere like Australia or Great Britain: most forum members there have said many times that the domestic decks leave a little something to be desired and the import costs involved in buying American decks like Bikes makes them prohibitively expensive. Getting more life out of a deck is NOT a bad thing, especially to these folks...