Whoa, this popped up!

This thing has great value for money, and I have the cash?? But my locker is about to expire soon, so I'm debating whether I should wait for the next locker. I really want to buy it, but should I hold off? Right now, I'm pretty much stuck in place, my flight power is dropping, and I keep losing trophies ㅠㅠ That's why I'm agonizing over this decision.