Apple is rated #1 for both repairs (notebook quality) and technical support.
It is mainly the issue of whether the Apple will do what you want and whether you want to deviate from the PC's most people use at work and home.
If you have friends or some other support with Apple products they are outstanding.
Note, the 15" powerbook LCD model had a recent battery recall (very recent) so make sure you know you have a good battery if you buy this.
Actually, the 17" LCD powerbook only weighs 6.9 pounds (PC 17" LCD models are over 9 pounds) and it does not cost much more (and it did not have the battery recall) so you may want to consider that.
Steve Jobs had the 17" LCD in the hospital while recovering from the pancreatic (non-terminal type) cancer surgery.
This 17" LCD powerbook is at or over $2500 but if you have settled on the 15" model you are over $2000 already.
For a PC the 15.4" widescreen is the effective portable limit due to the weight (for example my 15.4" widescreen Compaq X1000 series weighs 6.5 pounds).
You can't find a mainstream notebook backpack that will hold larger than the 15.4" inch widescreen or 15" square screen but if you are willing to pay the $ check out the Apple 17" LCD powerbook and you can find a satchel for it.
I was looking into buying a 15 inch Apple Powerbook G4 and was wondering if anyone could give me some info on it. For example, Will it last me a while or Would you recommend going with a windows pc instead. Also any information on the Apple Company would be appreciated too. For example do they make a quality laptop product? Thanks!!