Yeah, our typical wine comes from Beverages & More (BevMo), where between case sales, their regular promotions, etc, there's always some deal. My wife's regular wines are a Chardonnay from a winery called Unruly (which is a house BevMo brand) that ends up being $8/bottle and a cab from The Buccaneer (possibly also a house brand?) at $10.50/bottle. She'll have a couple slightly more expensive bottles rotated in here or there, but that's the bulk of it. And most days I'm drinking beer, not wine.
We only get into pricier bottles when we're doing wine trips. And then those bottles are the ones we break out when we're cooking something fancier that pairs well with wine, on the days when I decide to drink wine instead. The biggest issue we've had is that we've often had the low-end (those listed above), the mid-grade (reds in the $20-40 range), and the high end (bottles in the $50+ range) and we'd almost never drink the top end. Since I keep the low end stocked and the top end rarely would be opened, we'd constantly be hollowing out that mid-grade range. So we've been trying to be better about being willing to open those nicer bottles.