Well, I'm not going to say parenting is easy, it's not. If it helps there is something more fun out beyond his current experience, you will know it when you find it, and you'll be on to the next thing.

As for books, the thing with reading is to get past reading into thinking and once you get there games won't be nearly as entertaining because they are always the same. Something we've done over the years is reading and talking about them. Even simple books like The Animorphs series have things to talk about, or the Boxcar Kids, or any of a zillion books. Good starters are "how would you have told this story?" or "can you create a similar one?" "What do you think character X was thinking?" "Do you think we could build a fire with just a rock and a piece of steel? Lets try it."

As long as you stay engaged, your kids will keep coming back. At this stage they are genetically programmed to seek out your approval (too bad for them, but a critical survival tool in the parental arsenal) Expect more, stay engaged, and if you have the experience I have had you will both enjoy the trip.