I've had my early 08 MBP model for over a year now and I still love it. But I'm already thinking about the benchmark which will signal my next upgrade (although that won't happen for another 3-4 years). What will make you replace your current MBP? For me:
A 15inch OLED display with 8 bit color
Non gloss matte screen options (hit)
Enclosed battery (hit)
Better cooling technology (copper grills + fan is so 90's)
Quad core or more
4 gigs of ram or more (hit)
Removal of DVD drive or Bluray burner instead of DVD
If DVD drive is removed, I don't want it for space savings. I want it for other things like much better and near silent cooling (imagine your laptop running at 20C idling, 40C at full)
On die GPU and discrete GPU with how swap option (ie, switches on demand)
A 15inch OLED display with 8 bit color
Non gloss matte screen options (hit)
Enclosed battery (hit)
Better cooling technology (copper grills + fan is so 90's)
Quad core or more
4 gigs of ram or more (hit)
Removal of DVD drive or Bluray burner instead of DVD
If DVD drive is removed, I don't want it for space savings. I want it for other things like much better and near silent cooling (imagine your laptop running at 20C idling, 40C at full)
On die GPU and discrete GPU with how swap option (ie, switches on demand)