I clean and maintain by equipment as rigorous as anyone. Everything is wiped between shots, and throughly cleaned at the alley before going home. I adjust covers on the spinner to refresh the surface on every ball approximately every 20-30 games.
There are very few balls I've owned that ever suffered complete "ball death". As charlest stated, every ball suffers some degradation over time, but thats normal regardless of manufacturer.
The last ball I couldn't revive no matter what I did was the Storm Reign of Power. The ball was a monster at first, but noticeably mellowed out after a short period of time. I tried every corrective measure possible to no avail. I finally gave up.
It's unfair for me to make any sweeping Storm conclusions, but that experience turned me off to buying Storm higher-end equipment. There are too many other choices.