Check your snow chains. I bought some for my expedition in 1999. When I sold it last year, I checked the unopened sack of chains to find only one chain in it.
At least the guns, gold and freeze dried food made a come-back...and wow also in 1999!
Be fearful when others are greedy, and greedy when others are fearful. Just another form of "buy low, sell high" for those who have trouble with things. This rule is not universal. Do not buy a 1973 Pinto because everyone else is afraid of it.