Not sure of the used bike prices in your neck of the woods, but Facebook and Craigslist have some good prices on brand name bikes for less than your bike would cost. Lots of great used bikes are coming into the market since covid. I paid $1,100 last year for a 2016 Spec Roubaix with Di2. It was like new. Also, a no brand used bike would be hard to resell if you wanted to move up.