Whats the benefit of “real” pedal boards as compared to this

Im still a novice at guitar and have this zoom g5 and it has every effect I could imagine in it and they all sound really awesome through my jet city Pico valve 5watt but I was wondering when or why would I ever need to upgrade if this has every effect I could ever need in it? Would this be something a professional would use? To me it sounds great and people also say the effects within it are awesome. Ik I shouldn’t care as much about what others think and just what sounds good to my ear but I was just wondering what the consensus was on these multi effects pedals?