Indeed I have had some wonderful MdDG wines from the 1980’d (that have been in remarkably great shape for their age). My comment here (whether the smaller-format bottles are still good) was specifically on this 1991 vintage, because I’ve understood it wasn’t a particularly good vintage in many parts of France and IIRC it was an abnormally hot and dry vintage in Languedoc. I really didn’t think my data points on other old vintages had much weight, since there can be quite a bit of vintage variation with MdDG.
350€ for 6l, that would be 45€ per bottle. That’s about the same price as current vintages ex-domaine.
So if you sourced it recently, I’d say it was a pretty good deal for a 30 years old wine, especially since large formats usually come with a premium.
Great notes as always Otto, thanks for your posts!
On a side note, I’ll keep in mind that next time I go to Finland, I’ll think twice before challenging anyone to a wine marathon… 
Alain
For the record, it ain’t. The previous vintage was 28€, I’m waiting for any info on the next vintage.
But yeah, my comment was how much the bottle was, not how much it was €/l. If I’m planning to buy a bottle, I can’t see myself dishing out several hundreds of €’s, no matter how big the bottle was.
Yet I do agree that the price was definitely reasonable for a 30 yo Gassac if you look at the price from the perspective of 8 standard-size bottles. However, an Imperial-size bottle also means Imperial-size risk of a corked or oxidized bottle!
Oh come on, we’re always ready for a new challenge!
I’m sure that thought has crossed the minds of everyone else here outside Finland. Maybe we just need to take up pre-marathon-drinking saunas.