Hi. I'm not sure I understand the difference between a wine cooler and a
wine cellar. I'm talking about stand-alone, refrigerator-like units. I've
seen some people refer to them as cellars and some refer to them as coolers.
Is there a difference?

Also, is humidity controlled on these units as well as temperature?

Is there anything wrong with starting out with one of the cheap Costco
units? I have a few bottles of nice wines I picked up in Tuscany a couple
of years ago and I'd like to make sure they are stored properly.