Only thing I never used from Stern is the balls. They used to be notorious for being shitty. Balls are cheap, buy some good ones and put them in before first game. Just be sure to give them a good cleaning to get all the oil off before going in the game.
I always put in shooter lane cliffys in my new games. Other than that I really don't think you need anything else in a home setting. I've got a MET that I bought new over 6 years ago and the scoop still looks brand new.
Like others said, give it a wipe down every month or so with a microfiber. Play the hell out of it. Enjoy.