Here's the deal. I use my yeti cup at work every day. I wake up, fill it with water, and bring a vitamin water with me. I drink my coffee in the gas station container, then hit the water and when I'm done with the the water, I pour in the vitamin water. When I leave, I still have a cold drink because I still have ice.
When I'm at home I use it without the lid. If I pour a room temperature Dr Pepper into a normal cup, it ends up being watered down by the time I get about halfway through it. With the yeti cup, it's just less watered down. Which is a good thing.
If something were to happen to mine, I'd stop by Academy on my way home and have zero issue spending $40 on a new one. Both of my coworkers, who thought I was full of it before I talked them into buying one, agree.