To anyone planning on getting one, three bits of advice!
1. If you're planning on getting one, go somewhere like Bed, Bath & Beyond, or even tervis.com, and buy the handles. The handles are Very Good Things. See #3 for the reason.
2. when you see them on the ship/CC, buy them. they might be gone or you might never get back to the store.
3. If you don't buy the handles, be CAREFUL with sunscreen. If you search "tervis sunscreen" on your fave search engine you'll get sad sad stories of ruined Tervis cups. If you look on tervis.com you'll see an FAQ about sunscreen. Many sunscreens ruin the look of the plastic. Makes it all cloudy. You think it's just grease that will wash off, but it won't. It'll look like that forever.
And that makes you want to book a cruise that would ultimately be the Most Expensive Tervis Cup EVER.
So get the handles AND don't handle the cups with sunscreeny hands. I'd post a picture of what happened to my cup (the big 2013 one shown in this thread) but it depresses me too much to see what I did to my cup and it's been in hiding.