old sauces get sold all the time as collectibles. Not sure if I'd want to open and eat some of them past 5 years from date of mfg....but collectables....yea...there's definitely a niche market.
If the plan was for a new sauce maker to make and hold a batch of sauces to be sold as a Collectors edition 10 years from now, that's a big risk. The sauce/maker needs to desireable enough to make people want to buy the bottles 10 years from now. Blair's managed to create a collectors market by bottling extract in cool bottles with wax and skull keychains at the start of the superhot and collectibles market expansion.
If someone wants some extract, I have some, could send it to them for about 1/10th of the cost of a Blair's Reserve. Could even put it into a cool bottle with wax, etc. Market-driven...people will pay a price... It wouldn't be a Blair's collectible, but it would be the same thing Blair's is selling for 10x cost.
Some newer sauce makers have created a niche market for selling their new sauces in cool one-of-a-kind gnarly bottles. They seem to be selling now, not sure how long that market will last or even how good the sauce is.