I can't say it was my first great wine experience, but it was among my greatest great wine experiences.
The Hangsteffer family had made a fortune in the high tech industry in Massachusetts during the late 1970s. Jim Hangsteffer was into fine wine. When he found that the wholesale wine establishment was getting in his way of importing the wines he wanted to, he founded The WInecellar of Silene, whose wholesale arm was Silenus Wines, marketed with the brand "Stefmon Selections".
This was the very first fine wine shop I encountered. They were instrumental and at the vanguard of bringing many fine wine names to New England, including Chateau Montelena, Shafer, Seghesio, Lusatu, Isole I Olena--all of which they carried before they became cool.
When Jim Hangsteffer retired, he held a tasting bash to celebrate the occasion. I had the great fortune to be invited. The subject of the tasting was a vertical of Chateaux Mouton-Rothschild and Latour, from the vintages 1929, 1961, and 1982 (this being 1989). Mr. Hangsteffer had obtained his 1929s some years earlier from a wealthy collector in Connecticut who had purchased them in 1931 and cellared them very well ever since. This man's house wine was 1929 Mouton--he reserved the 1929 Leoville-Poyferre for special occasions.
It wasn't until I tasted the 1929 Latour and Mouton that I realized for the first time, why the critics go ga-ga over old Bordeaux. This was an epiphany.
And no, the 1982 Mouton has NOT proved a worthy successor to the 1929. I sold off all my bottles of that wine at auction. And I was glad to get the money (and to stick the poor suckers with the wine.

).
But now I DO understand why old, great Bordeaux is so highly regarded. It can, indeed, be magnificent.
-Paul W.