I think that is more a SS thingy than a prepper thing...I drive by these large and very perfectly stacked wood piles and do a double take. And dream of having that at my house! Drooling over hay, firewood or lumber piles has been something I've been doing for some time now....and my kids laugh at me about it.
I'm more like Barred Buff and Free...we make a lot of our own food and barely buy anything from the store, so we have to have some ingredients in storage.
And a good bit of my food is running around in the back yard, so I guess that is stored also.
I think I prep in a totally different way than most mainstream preppers seem to do. I do not stock up on sale items in the stores because, if I wouldn't eat it now, I sure as heck don't want to eat it later. I don't store large quantities of things I wouldn't eat on a daily basis, no matter how cheap.
I have about 140 lbs of red turkey wheat stored and sealed into metal cans...but purely by default. Someone gifted them to me but I would never have taken the time or the thought to do this on my own.
I guess I don't really feel the need to prepare for some food shortage or economic decline because my life has always been lived on the edge of both and I have been riding that bicycle all my life.
I am as prepared as I could ever be because I know I can live without and produce my own.