Unless your wife’s storing high-end collectible wine, they won’t last forever. White wines might start turning 1-2 years after bottling. Reds might start turning bad after 3 years. (I work part-time at a winery.). Your mileage may vary, but just be aware.
How about a barrel of whiskey? It usually bets better with age and won’t go bad for a loooong time.
As for the wine: It’s decent stuff - not fifty dollars a bottle, but decent. Even if it turns bad, someone will drink it. I remember some of the crap we made in college that was so bad we had to hold our noses to get it past our lips. But we drank it and other people will be just as bad off when TSHTF as we were then.