Yes that's another factor. For the cheaper wines (pretty much anything you can get in a grocery store), they're made to be opened immediately and don't really benefit from aging. But the higher end wines need to be aged.
One of the fun things is that you don't really know exactly the optimum amount of time to cellar a new vintage. So there are online forums where people will buy a case and open one bottle a year and report their results on how the quality changes over time.
>you don't really know exactly the optimum amount of time to cellar a new vintage.
This is a hidden benefit of belonging to a wine club. Often you can talk to the wine maker and/or they are opening enough bottles regularly that they can give you a sense of when it's time to drink. After you've been through a few years of the syrah or the cab sav, you get a sense for yourself too because you start to get the pulse of what the winemaker is making.
This is actually the first year in a long time that I have a batch aging -- using wild grapes growing on my property. The first wine I ever made (from a kit), unbeknownst to me, needed to be aged to taste good. Once I learned that, I did the same test: every few months I'd open a bottle and taste it. After a year, most of the "tarry" flavors were gone, after 3 it was getting good. At five I really liked it. Unfortunately, no bottles survived to the 10-year mark, but I did learn to make wines that matured a lot faster!
One of the fun things is that you don't really know exactly the optimum amount of time to cellar a new vintage. So there are online forums where people will buy a case and open one bottle a year and report their results on how the quality changes over time.