Want more tanks?
Wargaming West has just announced that in addition to a free World of Tanks update titled "Soviet Steel" on June 3rd that will bring more tanks, the Xbox 360 Edition of the game will be getting a physical disc. It'll be released in August for $19.99, and will pack-in 1,500 gold, 200,000 silver, a 30 day Xbox Live Gold sub, and three days of premium silver and XP boost time.
All in all World of Tanks 360 will boast 150 total tanks by the time this update is implemented. If you have a Gold sub you may as well give it a try, although the progression is a bit slow for my tastes.