At the first AWB, I thought I should buy some more regular mags for my Glock. I went to the gun show and they were about 5 bucks more than before. The dealer offered some big package of mags for that price. I thought it was a rip off and only bought two. Then they went to 120 each and I could have been a gouger.
Also, a LGS was going under and I could have bought a SW 3913 LS for a a significantly lowered price. Didn't. Sigh.