It all depends on the wheeling you do as to if its worth it.

If you just need the tires to fit, then a BL is absolutely the way to go....and, a SL does NOT give extra tire clearance when stuffed, only at ride height conditions, etc. (Only the BL gives tire clearance under all conditions)

If you need a bit more ground clearance, beyond the 1/2" of tire lift per additional inch of tire diameter....then a SL makes some sense.

I've always believed that no matter how high you will lift, it will never be high enough to never hit...so armor is first, the lift is second...sliders and plates can get you over things that a lift alone would make a mess of.

Lockers and T-case gears are another good example of a real performance boost....although the downtime and cost can also be prohibitive.

So - if you need the extra wheel travel/ground clearance, a SL is great....otherwise, the $ should go elsewhere.

Again - ground clearance is a mostly rock thing...and if you are on rocks, you need armor...if you only have a ~$grand...maybe plates and sliders should be #1 before a lift.