I almost bought all of my SG in the summer of 2012. It was very hard to get back then so I decided best to grab as much as I can while the getting was good. I bought around 40 plus pounds of bulk then bought as many tins as I could on the old tins I could get. I was buying tins of 2004 FVF and other type tins and I had some fun doing it. Today I have all the SG flakes I will ever need and moved on to other blends I felt the need to buy.
I ended up having lots of trouble finding John Aylesbury Luxury Flake and Wessex Brown Virginia Flake. No one talked about them and they became a bitch to get. I began buying in lots of 50 tins at a time because I thought they would get discontinued and I wasn't getting caught shorthanded again. The blend I really thought I was going to get short handed on was the Wessex Brigade Campaign Dark Flake. I took no chances and quit buying at around 220 tins. I have no worries that will ever run out.
As I see the shortages that are out there I am really glad I got paranoia when I did. There are a number of blends I would be short of right non a number of blends now. My extreme level of paranoia really paid off and I am sitting nicely on blends that you can only buy 2 tins at a time and I was able to buy 25-50 tins at a time. Yes you may call me nostradamus if you care to.