One thing to keep in mind is that people often find the budget boost is smaller than they want to be. So you may find yourself doing ANOTHER lift down the road.
You can sell the old BB (spacers and longer shocks usually) and recoop a good bit of the cash (around 225 or so) for your next lift.
This is true but you can also look at it a differant way, If you do decide to go bigger at a later date you can always keep the BB around after the bigger lift is installed then if you add a winch, bigger bumpers, armor, etc the BB can be used to level out the stance of your jeep.