I think you nailed it, $15 is a great point to start, especially when you are in discovery phase. As far as restaurants you kind of have to look at the wine list and maybe stick to the middle of that list in terms of price. That could be $40 to who knows. It depends on the restaurant. Most restaurants double and then some the price (1x, 2x or even 3x? yikes). Try to pick a wine you know and like... or ask the server what wines are popular since the regular clientele will be picking a value wine that delivers above its price. Look around the room see what is being drunk. Do this especially in France and places you are not a regular at. As you will not have time to "learn"... so go with advice. Servers never try to hurt their customers. Also many restaurants buy from a winery direct or a specific distributor that gets them "volume discounts". The restaurants often get the wine at 30%+ below retail, meaning they can really make a killing on that bottle price. But remember the wine is a big part of a restaurant's profit. They need those wine sales to really make a living. Especially if it is a small family run place. The food is often kept cheaper so that wine sales bring in more profits. Also if you are learning wine, go to a wine store where a sommelier is picking the wines being sold. And make friends with that person, It will rocket up your experience.

Average for me is 28$-70$….. Yes, I save for “intentional purchases”…… I look for “tradition and history”, along with taste….. each style has a story.

Could you recommend some around one hundred dollars wine?