A:
I own both. The Curado is an 200 E7. The curado is a good workhorse reel for the money, no question. It's not as smooth, light or versatile as the 2010 Premier, though, and can feel a little less sturdy when retrieving bigger lures or fish. It's also a little more finicky to get set just right, especially on windy days. The Premier is just so smooth and low fuss that it's hard to find any faults with it.
Worth $100 more? That's for you to decide. Personally, I have 1 of the Curado's and 2 of the Premier's and will be adding more of the Premier's rather than any more Curado's.