If you were planning on trade-waiting for Uncanny Avengers, I'd recommend against it
unless you want to pay more than the individual issues will cost.
Is that the only way they're doing to the trade? I thought those kind of hardcovers were usually a special edition type thing that came out after the cheaper paperback trade.
For Marvel's AAA books, which Uncanny Avengers
would be, the hardcover comes a month or two after the final issue in the collection, with the trade paperback coming about six months after that.
For non-AAA books, they skip the hardcover stage and go straight to trade on a similar schedule.
Marvel's also reprints older material in hardcover, but that's a bit random.