Questions about Nokia 8

Why does this second-hand Nokia 8, which is over two years old, cost 1173.- (as of 11.02.2020)? I was able to sell mine (Stainless Steel Edition) without signs of use and original accessories for 400.-. It would never have occurred to me to ask for more than 1000.-, as I bought it for 800.- at the time.

My Nokia 8 has no video. Camera is there, but on the page with the two dots where you should "swipe" from camera mode to video mode, nothing moves - "swiping" not possible. Thanks for any suggestions on how to solve this.

Why do I only have Spanish documents with me? Is it perhaps an import device after all? Is it possibly second-hand and the first owner threw away the other language documents?

Hello, does the Nokia 8 have a notification LED (when you receive a text message for example)? And will it be available in black in the future?

Has the update to Android 8 for the Nokia 6 or 8 been delivered yet?