We have a Coleman Montana and absolutely love it. Have used it in heavy rain for days on end more than once and had no leaks. Last time we used it was at Inskip Point the weekend before the Queens birthday long weekend in some pretty severe weather. The ranges were warning everyone to batten down the hatches and I even had some of the local news crews interview me the day we left. The tent well and truly stood the test.
As for the price, I know there some places selling the Montana for anything up to and in excess of $800. We paid $550 for ours from BCF about 2 years ago and I know you can get them for around that from other places as well.
As for setup, I can set ours up in 1/2 hour easy without breaking a sweat. You may need someone to help pull tho fly over however.
It always rains on tents. Rainstorms will travel thousands of miles, against prevailing winds for the opportunity to rain on a tent.