Is the Limited Edition version worth it?
LIMITED EDITION BONUS CONTENT: Get the Bonus SimCity Heroes and Villains set!
New Characters - Protector of SimCity MaxisMan vs. The Evil Dr. Vu and his henchman.
Crime Waves - The Evil Dr. Vu is loose and will create havoc in your city. Normal police have their hands full against this Super Villain. The Evil Dr. Vu will solicit Sims to become his henchmen and carry out his dastardly deeds.
Super Hero HQ - Place MaxisMan’s headquarters in your city to combat crime and keep your Sims safe. Upgrade with the Turbo Machine garage and The Reticulator landing pad.
Evil Villain Lair - Place Dr. Vu’s Lair in your city to unleash a crime wave. As The Evil Dr. Vu commits more crimes, upgrade his lair with a special laboratory and a garage for the Evil VuMobile.
The standard version is £10 cheaper, and since I haven't played the game I don't really know how important the above things are