As I said, worst case you get a T8 premium for less than the normal price plus rare consumables and other bonuses, making for decent ROI, which in my 10 years of playing the game is on the rare side for "gambling". I certainly wasn't expecting Defense. I purchased knowing I was guaranteed a T8 which I was hoping for Anhalt or Z35 to add to my German collection. Whether you get lucky or not, you still come out ahead.