I was convinced about 10225, and I was very lucky. But this time, I changed my mind. I sold the 2 I've got, and I'm glad they are gone. In comparison to 10221 this set is just a pain in the... And now I have 1000 dollars which I can put into Tie Fighter for example. Easier to ship, easier to store, and mostly easier to sell.
Most people don't know about the revival of the death star here, so I bet the prices from EUR 449 will fall down to 400 or even below, when the new set is announced.
If I had a time machine, I would have purchased even more AT-AT instead of the 2 Death Stars.... ^^