I have a different question for DC fans.  Instead of complaining about the renumbering, let's focus on which series we'll continue, pick up or just drop.  I'm currently collecting: 
 
Green Lantern 
Green Lantern Corps 
Emerald Warriors 

Teen Titans 
 
 Supergirl 
Action Comics 
Superman/Batman 
Superman 
Adventure Comics 
Power Girl 
Legion of Superheroes 
Superboy
 
so the big question will be which series will vanish, either temp or perm, and which new series will I add.  It's too early to tell which series will keep the fans or drive them away.  Personally the 52 series sounds like throwing things at a wall and seeing which sticks.