Homebody Chin

I've had my male chinchilla, Perkins for about 12 years now and it seems peculiar that he doesn't like going outside his cage very often. When I first got him back in 2008, I would try to get him out of the cage at least once a week, but he never seemed to enjoy it for more then 15 minutes. We have dachshunds in the house, so we would put him in a closed room where they couldn't get to him. He hops around and peeps while inspecting his surroundings, but then he quickly gets bored and wants to go home (He tells me by burrowing inside my shirt). And yes, I tried different rooms.

I know chins are supposed to have time outside the cage, but my Perkins simply doesn't seem interested. I open the cage doors before I'm ready to go to bed and try to coax him to come out (on the rare occasions when he wants to, he will jump on my chest). I do not want to just pull him out of the cage when he clearly doesn't want to. Despite this, he doesn't seem unhappy in the slightest. He runs in his wheel, has fun destroying his toys and he loves throwing hay around his cage (as well as inhaling the occasional dried apple slice or raisin). He has quite the feisty personality.

Which brings me to my question, does anybody else have a chin that prefers staying in their cage? Is there anything else I could be doing to coax him out of the cage, or is he simply just an odd duck? Thank you in advance.