Some wine tasters, like audiophiles, have a golden tongue as opposed to ears. I'm a novice at best and seldom get it when it comes to the complexities of tastes. When I do, it's an epiphany of sorts as I marvel at the many and varied tastes and flavors that come and go with a good wine.
It doesn't have to be expensive. Some wine makers don't make the wine but take remaining stock and bottle it in different states and blends and are only allowed to name the clone and not the vineyard from where it came. These are sold at a large discount and it's hit and miss but you can get something for under $20 a bottle that will simply amaze. Some of these are sold under a store or restaurant name (Trader Joes, etc.).
In the limited span that I've been tasting, once you go up in price and are careful in your due diligence, a more costly wine does taste better than a less costly one.
Unlike audio, your nose and taste buds are nothing like your ears and yes, one can be fooled, but not often.
All the best,
Nonoise