Or very limited vintages. I have a few bottles that were $35-50 when bought, but only had 150-300 cases made. No way to get another of that same kind and same year...
Probably not. There are many small wine producers that will only produce a few hundred cases of wine each year. Despite being scarce, this wine won't be specifically valuable unless it's good or otherwise unique, because it's only a very small part of a very large market. The $35 wine will still cost $35. You won't be able to buy it any more, but there'll be little interest from others.
