I bought mine when they were much more expensive and didn't buy cheap and plan on upgrading. My laptop came with a 2.0GHz P-M and 6800Go, got it for $1600. After spending $160 for the 1.8GHz, $260 for the 7800GTX, $40 for the adapter, and $200 for the 2GB of RAM (yes, it was that expensive when I bought it ), I'm in the $2300 range anyway. It's still much cheaper than the XPS2, and now you can get the same system for $1600 or less if you play your cards right.
$1400 for original.....
ALOT for the upgrades.
130W Power Supply
1GB RAM. (when it was expensive)
Then MORE RAM (NOW)
7200RPM hitachi HDD (When they were expensive)
External HDD enclosure
Total Cost not including the selling off my stuff I upgraded: $1,339.11
So, considering I sold my desktop to a friend's family member for $1125, I'd say this was a pretty good upgrade (it was a 2.8GHz P4 Prescott / 6600GT (500/900) / 2GB PC3200 / 80GB / 17" LCD) for $214 hehe.