...adding to what everybody has said about the AGX, they don't like to be slammed. I've had my set since they came out for the s14 (about a year and a half?) and threw on some rsr springs a few months ago. They're still annoyingly stiff when they're turned up all the way.

...and $700 IS cheap for good suspension, AGX + RSR is about $650 for an s14.