Why try 4e?
Beacuse it's always good to try things out.
For that matter,
give OD&D, B/X, Savage Worlds, GURPS, Aces & Eights, Castles & Crusades, Swords & Wizardry a try....
I personally am very anxious to give Jeffrey Talanian' & Matthew Stanham's new RPG "Astonishing Swordsman &...