It's hard to break through that attachment to the game consoles. I only tolerate my son playing his games because he plays on a PC, and the boy knows just about as much about computers now as I do. And his Oculus, well that thing is like the best workout system I have ever seen. When he's done playing, he's ready for a change of clothes and a shower from sweating so much.
But when he sees you and your other son living it up, he'll likely get onboard.