It was too expensive for me so I bought an “open box, as new condition” one for $1,100 (£850). It was a risk but it really has been as new condition and I’m super happy with it. It has been a life changer because everything is easier with a larger screen (particularly the keyboard!) and having one device is so much more convenient than syncing and carrying two.
A lot of the cheaper used models have marks on the outside of the phone, but if you’re using a case then it’s a non-issue because the case covers them up. As long as the screens are fine.
Once the Fold 5 comes out in a few weeks even a new Fold 4 will hopefully be cheaper.