Why do you think these bows are so expensive? To cover the warranty! The limbs of today are about the same as 10 years ago. Risers, string materials and cams are different for sure.

One more point......limbsavers, high tech stabilizers, hush kits!!! There is as much if not more vibration on the newer bows. Vibration and noise is muffled, but the facts are the same amount of stress is still taking place.