But age as a signifer of quality is archaic, as distillers have gotten much smarter about how to make a good product rather than just letting things go for a long time and hope for the best. Honestly if you're buying a bourbon older than 10 years you're overpaying for diminishing returns. Most of the best bourbons/american whiskeys I have had are right around the $40-$70 range, and most don't mention age. I feel similarly for scotch but thats far trickier territory.
Source: I worked three years in an upper-scale wine and spirits shop.