They look identical to the 4Runner 3rd row seats. Each of those seats weigh 50 pounds for a combined 100 pounds. If one plans on keeping the GX for the long haul and doesn't use the 3rd row, why keep it around? The vehicle will lose 100 pounds and gain additional cargo room
. But if one plans on trading it in eventually, keep the 3rd row so the resale value won't take a hit.