Is headphone listening a primary or backup for you when listening to music?

I use open planar HP when I want to listen to "acquired taste" music in a different room (ars nova, tromba marina, experimental "pop": Laibach, Bestial Mouths, Ethel Cain, etc.). Contrary to @mikhailark the planar HP (Dan Clark Ether II) do not have the spacial refinement of the speaker system in dedicated room. I also use IEMs (Westone Mach 80) in order not to disturb anyone, or to remove outside noise (airplane). Closed cans are too hot for me.

Just installed a second TT with my computer workstation, and enjoy it over speakers in a near field set-up. Not loud, but over speakers.

Same - 90 percent of the time without the headphones.  And the headphones sq doesn’t compare.  

90% system , 10% headphones. I have a desktop rig on my nightstand with Audeze LC-2’s , so pretty modest overall. I have physical issues and use my cans when I am needing to lay down or can’t sleep at night. Regards , Mike B. 

Is headphone listening a primary or backup for you when listening to music?

Neither. It’s a minor curiosity interest so far with a tube amp/DAC and DAP for SS, Audeze LCD i3 planar and Focal Clear headphones.

I am a bucket list audiophile catching up by trying a variety of top Sonics

I have a pretty good dedicated headphone listening system that I put together specifically for relaxation and critical listening sessions that I use 90 plus percent of the time. 
 

@soix, “I’ve got both, and while headphones are nice they cannot put performers and performances viscerally and as big and spatially in the room like a home system can — not even close and not substitutes at all”. 

 I think that there’s a difference between viscerally feeling the music that one’s listening to and when one is listening through a really good headphone setup. The cost to be able to hear micro details in recorded music with speakers means you either have to be driving a lot of air, or you’ve spent several tens of thousands of dollars to even come close to the detail retrieval of many top tier headphones on the market today.