Plenty of sounds reasons on here.
I think you’ve got to remove the idea of what you think its worth. There are plenty of new options for around 1k that look way more appealing (snazzy paint, latest wheels etc.) You can’t compete with that on an old boutique brand.
I’ve owned several Turners and always sold them at good prices *after* a year. But the five spot does struggle now price wise; we’ve sold two at the local shop and they both had to bottom out at between 5-600, and both were good spec and good bikes.
Given it’s not made any more tells you it’s worth to Turner too.
Move all your gear along quickly and you will retain some money when you sell it. Hang on to it for more than two years and you will drop off the bottom. Even at a year old I think 50% is very likely.
Not particularly aiming this at renton, but I think it’s an emotional shortcoming to hang on to products because of what we think about them. I learned ages ago that it doesn’t help in your ‘consumer’ progress. The world is a cheap -ass place and prices for stuff are forced downward from new so why not accept you can’t have it at both ends and move something on of yours to help someone else get a good deal?