How negligible is the last half of the ninth?

I have an odd question that I’m not sure is very relevant but when the home team is winning in the middle of the ninth they don’t play the bottom of the ninth (obviously) my question is how much WAR/stats are lost? I get it’s a part of baseball but say one team always won their home games and therefore missed out on 81 half innings of hitting. How much are they truly missing out on? Is it pretty negligible? Am I just thinking about it too much?