I stock roughly 15 attys of each kind.... 15 of the 901, 15 of the 510, and around 20 of the 801 style. And Of course some iattys. LOL, call me paranoid, but I like to have it covered...puts my mind at rest. But anyways, the shelf life, as long as they are NOT used...is a long time, Ive never had a problem.
-Tim
paranoid? I dont think so Tim. I have more that 40 atties for personal use. If you want to have a serious back up then you are a paranoid? Nooooooo