Yes. That will make it easier to step into/out of some of the rides without worrying about dropping him. Also if he falls asleep in line he won't have to switch positions.
My kids also liked to nurse in a front carrier or sling. This was about the only way I could get through grocery shopping. If you breastfeed, this might help when baby gets hungry on a ride, during a show, etc. You could breastfeed anyway, but if baby is in a carrier you don't have to stop to get off the ride/leave the theater.