Yeah, no matter how carefully you pack, suits always need a good press or steam iron after packing. When traveling I don't even worry about trying to keep dress wear unwrinkled anymore, just head straight to the dry cleaners once I reach my destination.
When I travelled a lot for work, I would actually pack my dirty suits and shirts and get them dry cleaned where I ended up. When you don't care about wrinkling your clothes, you can always fit more items in the suitcase!