The price of a good wine varies as much as any other product, and is based on a multitude of factors. The varietal and its relative cost to cultivate; The amount of grapes yielded in a particular vineyard’s harvest; The amount of time and artisan expertise required to ferment and produce the wine; The materials used throughout the production, particularly in barrelling and further ageing processes; The materials and production supplies used to bottle; And marketing, post-production sales, distribution overhead, and all the other things it takes to get that bottle into your hands. So many things determine how much a good wine is going to cost you.
With so many options available, both in terms of varietals and wineries producing that particular wine, and so many styles and production sizes, a given wine can range anywhere from $15 to eight times that, or even more.
This question is hard to answer, in part because individual taste and budget are big factors in determining what you may want to spend on a wine, how you might gauge the quality of wine in comparison to the cost, and the ultimate question: Would you purchase it again?