I have a 17’ Epson P-900 and am trying to decide between a 24” 7570 and a 44” 9570. I don’t photograph in medium format and my highest resolution camera is a Sigma FP-L, otherwise I mainly shoot with the Leica M-10R/M-10Ms and Q2/Q2M. The cost isn’t a major issue, and space is an issue although less of an issue than it might be for some people. I have had 44” large format printers before and, in truth, most of my images were in the 24” realm.
Obviously the decision is mine to make, but I am leaning toward the 24” simply because it is a little bit more manageable sizewise and maybe slightly less insane to buy and install.