Hahah, well it is an extra cost, for sure. But I would definitely set up a split run again if I needed to make a new set up in the future. It's just too handy even if you don't use it all the time. Like just dealing with a broody-(that doesn't want to break), if I see her eyeing the coop I just shut the gate on her so she can't even get to it while I clean out her jail cell.
It sounds so convenient.