it is like anything else. . . . . . ease, convenience, and safety.
using only pull start for several years - then get your first electric start.
manually trimming the motor means stopping the boat, going to the back,
lifting the motor while leaning over the transom could be dangerous . . .
then, you get a boat where you never have to leave your seat !!!!
you have no way to appreciate it.
sort of like using a manually propelled push mower for half your life,
then, you get your first rider !!!! WITH cup holders !!