I totally disagree. It is too short to drink bad wine. Cheap is not necessarily bad or poor quality, and expensive is not necessarily good. I could find you some €20+ bottles here that I would prefer not to drink. An Australian winemaker (that I regret I never met) by the name of Len Evans, and few will have heard of him, reckoned that every bottle of poor wine you have is one less good wine you could have had. He also said there is no such thing as a good wine, only a good bottle. Very true. I have averaged at least a bottle of table wine every day since August 1979 so have consumed a few. That was when I moved to Australia and wine was almost free compared to prices in Britain.
Here in Portugal there are some very palatable wines at about €1 a bottle and cardboard casks tend to be made of a slightly higher standard and sell at about €7 to 10 for 5 litres (6.66 bottles) so can be more expensive. It is possible to pay twice that. I recall my son and I making a "raid" across the border a few years ago and bringing back some very nice Spanish wine at 59c a litre. At your $10 to 15 I would expect a very good vintage from a well-known quinta and winemaker with the wine having been properly cellared and probably not available in a supermarket. I bought some better wines for cellaring (not immediate drinking) today and paid around the €3 mark for each bottle.
As I said, having a range of wines on the table does not mean you have to drink a lot, or spend a lot to obtain a great deal more enjoyment from the food, and that to me is the important thing. Wine is only to complement the food, we can live without it, but we cannot live without food. Those of us who put in a few hours of hard physical work each day need to eat well to be able to do so, so good food is of extreme importance. To be able to enjoy a suitable wine to go with that food is a personal pleasure and one I would prefer not to do without.