Does anybody here remember MS Wine Guide that used to be popular back in the day?

Just opened a half bottle of the 1973 Bereich Bernkastel Green Label Qba. It had completely maderised and was fine. Vintage Madeira wine for 40 pence per half bottle. I bought about 100, ten years ago.
Well, earlier I had cup of piping hot green matcha infused with turmeric, black pepper, and cayenne pepper.
I agree. Wonderful. I love water.
But the glass of 49 year old cheap German white wine was superb. I only just drank it ... left it for two hours to let the bits of cork settle. They settled on the bottom. The contents of the glass were rich, a little sour, good and strong fruit flavours, slight burned taste. Like a glass of very good Madeira wine. It was almost corked but the mange still had an eighth of an inch to go before it hit the wine.
On the contrary. It's a German wine and 8 to 9% was typical of the classic German Rieslings, which are extremely hard to get hold of these days, I suppose because it's all drunk in Germany. Considered to be among the best in the World. Not the one I had so many half bottles of though. That was an extremely cheap one. A half bottle would have cost less than £1 at the time it was made. That's the joke. It wasn't supposed to last for more than a couple of years and the fact that I still have a dozen half bottles is crazy. I paid about £20 for 50 half bottles about 10 years ago. Some of them are undrinkable and most are ok but some would be extremely expensive now it it were possible to tell the good from the bad by looking. Of course you can feel the cork and you know ones with soft corks are likely to be bad but not necessarily. They could be superb.
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To find such a steal would be impossible around these parts.
I know the valuer for a large auction and I think it was a lot that hr'd bought direct because it wasn't quite good enough to put through the auction. Also he was a whisky specialist rather than wine. The 1972 Bernkastel was in another lot from him and part of that lot was a 1976 Kreuznacher Auslese Riesling. I like German wine and that is one of the best possible, although I thought that 1975 was classier than 76. It was £4. I'm going to drink it this year. Wife also likes German wine, which is very out of fashion atm, which is completely crazy.