Well, for one, it is not a just few extra inches, it is an entire foot. I have had 2 22' wake boats. Our 23' Mojo is so much more spacious as compared to them. If you can afford it, there is no reason to not go with the bigger boat. You'll never wonder "what if". When you demo them, you will see that for yourself. You also have to think of all the bags for the kids, when they invite friends, when you guys invite your friends with kids. The only smaller boat I'd consider is the Max as it is 22'6" with a 102" beam.
2018 Supra SA400 aka The Ron Burgandy
2011 Sea-Doo Wake 155
2015 Mojo Surf, sold...2013 Axis A22 Recon Edition, sold...2010 Axis A22, sold...2007 Maxum 1800sr3, sold