if you want an RTI ramp champ then i could maybe see why you would switch to links in the back. for me, i could never outweigh the benefits to the cost to linking the back of my truck. maybe it depends on what region you are wheeling, but in the midwest, i don't have any complaints.
you also have to do some engineering to get it to work properly. i have seen a LOT of homebuilt link setups work like garbage.