More gear = more problems. If you’re happy, don’t change it. Only add what you miss badly.

You could use the octatrack to mangle samples in there, and then record them as audio in ableton for further processing. Some ppl even use it to sequence ableton but I think you’ve got that covered with push.

The OT for alot of people is the brain of their computerless setup, it replaces their laptop in livesets. So when sticking with ableton/push, alot of the OT’s functionality becomes obsolete imho.