I've always thought off road roof racks looked pretty cool and provided the best platform to mount lights on, so I've always wanted one. Now that I'm actually getting close to buying one, I'm having second thoughts. The set up I wanted was a defender brand roof rack with 4x Hella 4000's on it - I would take the two Hella 4000 Euro beams from light bar and add 2 pencil beams up there, and replace my light bar lights with amber lense dust/fog lights. In addition, I would want back up, dust lights, and side lights (small square lights) around the perimeter. I would also mount my CB, radio (since I removed the original mount when I put the fiberglass fenders on), and eventually a 2 meter radio antenna on it. All in all the rack, lights, and antenna mounts would end up being about $1,000.
The way I'm looking at it now:
PRO's: 1. Drastic increase in offroad lighting.
2. Great place to mount antennas.
3. Would be useful for storage when camping, as I generally fill the truck bed to the brim.
4. Helpful for hauling long objects.
5. Looks bad ass.
CON's: 1. Won't fit in any normal garage anymore. I'm moving to Missouri in December so this becomes more of an issue being in a state that will get snow.
2. Gas mileage is going to go to way down. Reading online, I should expect a 15-20% decrease in MPG. For something that would be used such a small percentage of drive time (basically only using it when camping or offroading at night), that's a lot of money to give up on gas.