I just read that US Amazon does sell Oasis covers separately now. That's good news for Oasis owners. The bad news is the price tag of course.
I encourage everybody who feels tempted to buy the Oasis: if you can afford it then give it a try! Otherwise you might always feel envious. And it might be the right device for you after all. I'm glad that I tried it out. Because now I know for sure that the Oasis is not for me