Lets see here:

$1200+shipping on the 6gb Mark 1 back in early 2000
$1316+shipping on the 20gb Mark 2 in Feburary 2001. (Included a tuner and carying case as well due to the upgrade offer)
$500 on the 60gb bought last month. (free shipping)

Money I have made on the above:
$950 selling the Mark 1 on eBay
$200 selling the 20(now 26gb) to a friend

And even with the fact that price of ownership for me is at $1866, it's still well worth it. I have enjoyed the freedom of having a ton of music at my fingers for 2 years now, and it has introduced me to an awesome community here on the BBS. The only other way to draw me out on a long road trip beyond this group is a bunch of gamers at E3.