i agree also. some kits dictate that you pull the spring pad isolator out (for the life of me i can't see why though) and you'll end up with a couple laying around. add them up though and you'll get a small budget boost. they are also great for offsetting the weight of a winch, heavy front bumper, or lack of rear tire/carrier combo.
Mine - '03 TJ RE4.5 coils, long arms, 4.88 gears, arb/detroit, 35" BFG KM2's, 9.5ti, skids, etc.
Hers - '01 TJ RE4.5 coils, 35" BFG's, Hs9500, HP30/8.8, 4.56 gears, skids, etc.