YES!

love the stuff.

Any varietal, any region of the world - as long as it expresses the character of the grape, and price : performance ratio is good.

You could try & start out with a fun "wine course": Jancis Robinson's Wine Tasting Workbook. Lots of fun, you learn about varietals, about tasting etc.
We go to tastings and then often buy by the case. That's a good way to know what you're buying.

I have to say, once we open a bottle, we rarely have leftovers.

This does affect cycling performance, especially on day +1, and especially if the wine is "headache-prone". I definitely notice it if I haven't had wine for a whole week(-end). But that is rare because we like it, and we can wind down so well with a glass of wine.