hahaha don't say like that la... It's all marketing. Both Canon and Nikon (and the others too) make good cameras. Nothing to 'distrust' about them. They wouldn't survive in this industry for so long selling inferior products.
The increased number of AF points has a certain advantage. Say you're taking a self-portrait with remote. You want to compose your shot, lock the tripod, and fire with the remote or timer. You can't half-press then recompose, can you?
Also, more AF points is good for tracking moving objects.
I'm sure there are more advantages, but I'm not too familiar with them as well.
To me, the main advantages of the D90 over the D60:
- much improved LCD screen. Triple the resolution I think.
- The increased weight and size of the body feels much nicer in my hands.
- having an extra LCD screen on the top, to see all the settings at one glance.
- having 2 rotating dials (instead of 1) for setting aperture, shutter speed, flash mode, etc.
- ability to trigger an SB600/800/900 remotely using the built-in flash.
- built-in AF motor to use autofocus with Nikkor AF lenses (or 3rd party ones too).
- newer CMOS sensor + software handles noise at high ISOs much better.