Leather is just a durable material as long as you maintain it. 
Yeah! It definitely takes some caring for. Both my phone case and my wallet are leather, and I have to be very vigilant about keeping them in good shape!
It also depends on the quality of the leather, there are different grades of leather so that also plays a factor.
That makes sense! I'm sure there's a lot that goes into making leather goods - from the inherent quality of the raw product to how it's processed and tanned.