It all depends on the top and how old it is. If it's a brand new top of the line top their trying to sell for $1500 then it's worth it. It's like buying a jeep its self, it all depends on the condition and the situation.
DD- 1995 YJ 2.5L, Cat delete, 19lb injectors, 30/9.5r15
Trail Rig- 1994 YJ 4.0L, Rubicon Express 4.5inch lift, 1inch body, D30 Aussie, 33/12.5/r15 Cooper Mud Terrains, front bumper, rocker guards