We have a 64 and a 48 here. The 64 is great, but we most often run 54" on it - which our 48" can't do. But like others have said, banner is the only thing you commonly find in 63-64". If you were able to get a 72" machine, you'd probably have a very small list of vendors that could get you 72" material and unless you're buying a ton of it, might actually gouge you a bit because of this. I know the big shops have billboards, etc. but they are usually not buying their material from places like Fellers & Grimco.