Are there "good" reasons for collecting wine?

Why do people collect wine? There are probably dozens of reasons. Here are a few that come to mind:

• Because they have lots of money and they can
• People like to collect "stuff", and wine is more "stuff" to collect
• They think it's "cool" to collect wine
• Because they built a wine cellar and now have to fill it with wine

Some wine collectors have literally thousands of bottles in their cellars. Some of those wines have been there so long that they've probably gone bad - or at least exceeded their prime drinking windows.
Seems a little silly sometimes - and I'm in the wine business!
There are, however, two very good reasons for collecting wine if you are a wine lover. First, wines vary in quality from vintage to vintage. It makes sense to stock up on your favorite wines from the best vintages. Second, it's a great learning experience, not to mention loads of fun, to experience how a great wine evolves over a period of, say, 10 years. The changes in wines over time can really be amazing. Of course, you have to have the discipline to hold the wine over time. Sometimes that's a challenge for me.

Tom