I had Cooper CS4 on my '97 Grand Caravan and they had about 30k on them when I sold it, still looked new. Didn't measure tread depth, but they had a long, long way to go yet. Rode nice, less road noise than other tires I've had, and handled quite well in my opinion. Good traction wet and dry - don't know about snow or mud though.
$130 for 2 of any brand new tires is a good deal! Or do you mean $130 each? I think there are better brands than Cooper, but not for $130 even at $130 a piece isn't terrible.