I'm in the same ship - I have a nice several year old MBP but unless apple come up with something compelling my next machine will be something else running Linux.

That all said, I think apple are up to more than is immediately apparent. They're spending huge amounts on r&d. From the frankly incremental improvements seen on their existing hardware line over the last several years the majority is going somewhere unseen. We saw patents for hmd/ar related tech a few years back.

I wouldn't be surprised if they do something nobody currently expects and move aggressively into the hmd/ar space.