> but in 10 years may soften. So no they don't get better with age, it just takes years for them to be ready to drink.

A relative of mine did some work for a winery. As part of the payment or as a gift for a job well done they got a bottle of wine from 1965. The bottle was covered and dust and grime, looked pretty gross. By that time we drank it it had aged for about 25-30 years. The taste though was amazing. Didn't even taste like wine, had a very smooth velvet-y taste. Almost no acidity, not tannic at all.