I don't know a lot about the secondhand bike market, apart from reading that stuff isn't selling! But it did strike me that trying to sell a secondhand bike for 3/4 of the price you could get a brand new one with warranty is optimistic. I see
@roubaixtuesday beat me to it though.
My advice, hang on to it if at all possible as you clearly like the bike. Everyone needs a spare or two! If not, wait til spring as mentioned above.
I'd also add general advice for selling secondhand stuff. Clean within an inch of its life, so every component shines from every angle and it looks pristine. Buff the frame with some car wax* or even furniture wax.
Then spend some time taking lots of good, sharp photos with good lighting. Include closeups of all the mechanical bits. Do some beauty shots, ideally with a really nice backdrop, i.e you're selling not just the bike but the idea of the bike. The new owner riding it in beautiful scenery.
* not car "polish" which is a mild abrasive, and if it's a spray don't spray it all over the bike just a small drop on a rag and rub it in, then a clean rag to buff.
After all that you'll probably get a load of lowball offers and if you don't price it super cheap, be prepared to wait. On
ebay put it on with a decent but realistic buy it now price, and just let it sit there.