That wasn't a purchase, but a miracle visited upon you. Most of us have been fortunate to receive one or two of those, but that's not representative of the real world market value.
Several years back, at an estate sale, held the day after a blizzard, in a dark, unheated garage, I found a '40s-'50s Snap-On triple stack filled with old Blue Point, Snap-On, a few MAC. I was the first one to dig my way to it, asked the price; was told $150. Said, "I'll take it." Had to restrain myself from shouting, "SOLD! SOLD! SOLD!" and dancing all the way back to get my truck and load it.
I could have put it on craigslist for $999 and sold it in a day. I could have cleaned and sold the tools and boxes individually for more than $1500 if I wanted to fool with eBay. To do so might have been to show lack of appreciation for my good fortune, so I kept most of it.
So, yes, we do know miracles happen, but when someone asks for advice on where to find a Snap-On roller, seldom do we recommend regular entreaties to the god of one's choice.
jack vines