Run Tony Shells from the 2nd Series was my Holy Grail. The 2nd Series was the first series I ever saw at a convenience store and immediately started collecting them, but never could pull a Run Tony Shells. None of the other people I knew who collected them had it either, so I couldn't trade for it. I had pretty much given up on getting a Run Tony Shells. Then eBay happened. I kept looking for one, and finally one appeared for bidding. Back then, there wasn't a mad rush on Wacky Packages on eBay, so I got it fairly cheap. I was soooo happy to finally own a Run Tony Shells!
Of course, I kept looking and found out that a 16th Series actually did happen; the 16th Series never made it to my neck of the woods in Oklahoma. After the 15th Series, I kept asking my local drug store, where I usually bought a box of each new series, if the 16th Series had come in yet, and the answer was always "no." I called around to other convenience stores in Oklahoma City if they had them, but their answer was also "no." This happened for probably a couple of years. So, I figured Topps had stopped making them. I finally found a complete set on eBay, bid on them, and got them pretty cheap still. I somehow felt vindicated that there was indeed a 16th Series and now I owned a set! I'm still looking for the 17th Series, though.....