I found a demoed Birdy bike for sale. I'm unable to test-ride it because the seller lives a 6-hour flight away from me. From the pictures, I identified it as a Birdy World Sport, made around 2015. The seller told me that the bike has only been test-ridden with few miles, but has never been officially sold, or used by an owner.
What is the approximate value of this bike right now?
Is it worth paying the price for this model Birdy, or should I instead invest in a New Birdy (Mark 3) monocoque bike?
Again, I have no ability to test-ride a Birdy bike where I live.