Well, after seeing your post last night I decided to venture out to Sam's Club today. They had the Advent beer, and Advent spirits but no Advent Wine at our local Sam's. I like the idea of trying a 375 ml instead of a larger bottle.
The wines are the equivalent of $8 USD bottles, and the quality reflects this. A couple have been pretty good (Spanish Grenache my son & I enjoyed after pressing today), and some have been "ok".
But IMO it's worthwhile, as I'm trying wines I'd never hear of. Dinner tonight is with a Pinot Noir from North Macedonia -- I had to look that up, as I knew it was a country but had NO idea where it was. Turns out it's between Greece, Albania, Kosovo, and Bulgaria. The wine itself is a bit too tannic and astringent, but it's a 2021, so it needs at least another year. However, now I'm willing to take a chance on a wine from this area.
If you're willing to gamble, try a subscription with Laithwaite. I re-signed with them recently and get a case each quarter. I have no idea what's coming, other than it's red (can get white or mixed, if desired), but the worst wines I've had from them was merely "good". They are trying to sell more wine, and some of it is a good deal. Some is way beyond my budget. But the scheduled cases are fun.
They also have discounted "mystery cases" about twice a year. I figure they are clearing the warehouse of odd-n-ends, and sell the wine at a discounted price. I've had good luck with these, and while I'm a red drinker, I have purchased white mystery cases and was satisfied with the result.
Note -- I'm wide open when it comes to wine, so buying wine sight-unseen works for me. YMMV