I can see the MBP (only portability option, I use one myself) or the Mac Pro, but the iMac has turned into such an unexpandable machine, it troubles me that any

I can see the MBP (only portability option, I use one myself) or the Mac Pro, but the iMac has turned into such an unexpandable machine, it troubles me that anything Pro is associated with it. It serves too many masters at this point. I hope the new Mac Pro is good.