Ummm... Why have a big fat pig that ends up weighing well over 5000lbs when you could easily have it weigh something like 4200lbs instead??? That lesser weight can go a long way just about any way you look at it (better perceived power from your engine, less likely to bend or break stuff, less stress on the frame while flexing, easier to extricate if you get stuck, and on and on and on).
If someone NEEDS that extra beef because they're going to run the harder "Hammer" trails out in Johnson Valley, then that's one thing, but I tend to think the OP here simply wants some extra protection against the occasional rock trying to take out the rocker panels on his "Daily Driver weekend warrior".