On my original lock-set, the key was nearly smooth. I could start the vehicle and then remove the key while the switch was in the on position, vehicle still running.
I bought a BNIB full Nissan OEM lock-set a couple years back. Ignition, trunk, doors, even the glove box.
Don't forget a removable steering wheel. Mine has a million combinations between the hub and the wheel adapter part, so even if a thief has the exact same brand and model hub/wheel adapter, his wheel adapter will not mate up with my hub. Well worth the expense to create another serious hassle for would-be thieves.