Yeah, I have my early '08 15" MBP that I got when I first switched from PC to Mac. It was my first laptop as well.
I still use it for school as it's mandatory for certain classes we take, but I got an iMac over the holidays and use that as my main computer now. The MPB doesn't get as much use at it used to, but still a good bit, and it's necessary for me to have a fully functioning laptop. That said, I think I'm going to pick up an iPad to fill that browsing/light application type of use that I'd love to have on the couch, laying in bed, etc., where the laptop is just too bulky and awkward.
I plan on waiting until 2nd gen. though. Hopefully my MPB doesn't go bust in the meantime and I'd have to get a new laptop instead of the iPad (knocking on wood!). I also do not have an iPhone, if I did, I may reconsidering getting the iPad.