As far as storage and care, keeping tracks out of direct sunlight is the most important consideration. Israeli tracks do not have UV protection in the rubber compound so UV rays will cause cracking and damage to the outer layer of rubber.
I have also heard that Isreali tracks used stainless cable. Stainless cable has a different tensile strength and as such have fewer bends over time before breaking. I would never recommend stainless for tracks. If a galvanized steel cable in an original set of tracks lasts 75 years before breaking, I think that is ok

?.
I ran Israeli tracks on my halftrack prior to making new tracks and I was not at all impressed by the life of the rubber. The Israeli tracks had small weather cracks too. After running about 500 miles on them, they really wore down the tread. It could have been a combination of the rubber composition and storage previously but it's hard to tell.
Hopefully my two cents was useful.
Jon