mine are about 3 years old. car has lived outside since i bought it (and the blades) in winter of 2010. they are rain-x latitude blades. i have also used rain-x washer fluid since i bought the car. the magical rain-x juice seems to condition almost any blades without touching them.
So the wife comes to me a couple of days ago and says "my car is making a bad noise I think we should trade it in", we'll let me at least take a look at it dear. This is what was making the terrible noise.
had to work on the inlaws ram today, every time i work on that thing its something else them something else, digging deeper and deeper. what started as a " i hear a noise" turned into a two day four corner brake, axle seals, gashed cv, seized brake hardware, etc.