Has anyone else had a Suomy for a few years and experienced discoloration? I have the Steve Martin replica and the white on the back is turning yellow. I bought the helmet when I bought my bike, back in Feb '04. These things only last 4 years? $500 only lasts 4 years? Ridiculous. I've barely actually used the thing too. When not in use, it's in my closet, in a bag, no where near the sun. I guess I'll email Suomy and see what the have to say.