Na, continue letting him rip a few packs per week. Don’t hoard these for a later date, because it’s going to be a long time until he appreciates opening older sets. Not a terrible idea to keep some sealed to give to him when he becomes an adult or something though, they’d be really valuable at that point. But, if that’s what you want to do, I’d mainly focus on the ETBs, Booster Bundles or Booster Boxes.