I feel like the Ranchos are worth the money. Not only is the rancho easier to install, but you get a new coil spring too. I feel like after 50,000 miles on my truck, the front end has started to sag a tiny bit. And the adjustment of the shock is a nice feature too. Its a huge difference in ride quality between the 1 setting to the 9 setting. You will probably find the setting you like the most in the first month then leave them alone, most people do. But like I said, its a nice feature to have the adjustment for when you want to switch it from your everyday commute ride to a slow speed weekend off roading trip.
AND btw, Rancho does make a monotube shock, its the 7000 series. But it is not available as a leveling shock for the front of the 4th gen ram.