Watch Dogs Deluxe Edition includes: Justice Club, which brings a unique skin club Chicago and Perk to improve driving package. Breathrough mission also brings an interesting mission with 15 minutes of additional game and a Perk driver improvement expert vehicles. Signature Shot Mission, which will give us another 20 minutes of extra play, plus a single assault rifle. The Palace mission, which will take about 20 minutes and you will get a bonus in research , so we can unlock more research opportunities within the databases, and a significant increase in the bonus hack ATMs. In addition to these missions, this deluxe edition will also bring a new skin for our character, an extra battery slot and additional 60 minutes of the game thanks to the 4 missions. In Watch Dogs we will be an important Hacker able to manipulate our environment with a simple mobile phone, in order to meet our goals and missions, with which we will be rewarded.
I bought it during a sale for 2 euros, it was certainly worth the price :)
Even at 9 Euros it's still a good deal