I've never had more than a passing interest in wines. In fact, I'm purely a label/witty name vs. price shopper: If it has a cute label or one that catches my eye, (Most recently there's one with stickers that you dress the lady on the label with like a paper doll-I love it!), then I'll give it a swirl. (Did you catch that wine pun?)
The fanciest I've gotten with wine is the yearly women's retreat with the Unitarian Universalist church in my area; the festivities begin with a glorious wine and cheese tasting, and you get to write down your opinions of said wines and cheeses. I began the tradition of making your wine review as ridiculous as possible. A couple I can recall (no thanks to the copious amounts that were being poured) are "made my underpants jump three feet to the left," "has a kick like a soccer hooligan," and "Has a finish like a sweaty saddle that I would like to lick again." Sweaty saddle was not a descriptor that I came up with, it was one on the wine poster the ladies had put up for reference. Personally, I don't want to drink something that tastes like a sweaty saddle; I mean, I hate horses. There were other descriptors: leathery, mossy, oaky, woody...Not anything I want in my mouth, really. Wait, I take that back. Anyone who knows me knows that leather in my mouth is A-OK. Ahem.
I also have never paid any attention at all to vintage years. I haven't ever delved into the actual wine process except for that done by friends or family experimenting with making it. I didn't think the year on the bottle had any more significance than just letting you know this was made in 2006 or whatever, older ones being generally more expensive.
After a long conversation with someone more worldly than your humble writer, I realized that the year has a great deal more to do with the liquid itself than simply a measure of time. It takes into account the weather, the harvest, the casks used to age, the temperature...anything and everything that may add character or ruin the batch. Wine is so similar to bread in that way.
At any rate, I am now a more selective wine shopper, though that won't stop me from enjoying a box of "Chillable Red" with my friends while eating pizza, though I may check the box for a year.