Does he have an interest he'd like to pursue a bit, like maybe golf, flying, sailing, skeet, rifle or pistol shooting; foreign language or music lessons? A gift certificate for some lessons in an area of potential interest might be appreciated without representing a commitment to pursue the activity long-term.
At price points all over the place: High quality binoculars, night vision optics, a Gerber or Leatherman multitool, the latest igadget generation (Watch, Airpods, iPad), a streaming subscription to a service he doesn't presently have (Britbox, perhaps, if his tastes run in that direction), a Z-gauge electric railroad starter set (e.g.
https://ztrackcenter.com/starter-sets/AZLFRIGP38), a bonsai growing kit, a piece of exercise equipment (treadmill, recumbent bike, elliptical trainer, weight machine).