Dice - Why do we find them so much fun?

Seriously, why do we? As gamers they are a tool to determine success or failure. You really only need one set. So why do I have hundreds of dice of all shapes, sizes, colors and makings? Heck, I haven't played a face to face game of D&D, or any other RPG in over a decade, yet every year or so I buy more dice? Why?

All the major VTTs have random number generators. Fantasy Grounds wrapped theirs in a nifty visual virtual dice rolling feature. Maybe that is part of the key to their success. Heck, last year when WotC was showing off their pre-alpha of their 3d VTT they borrowed their dice pic from Fantasy Grounds.

There you have it, I have more dice then I can ever use (and I'm not currently using) and the dice I do use regularly are virtual dice in Fantasy Grounds. Heck, I even have a couple of dice apps on my iPhone.

Guess I'm some form of a "dice" addict. ;)