I bought one second hand for £500 a few years ago. Was very local to me, guy seemed nice, looked after it etc... Its still going strong, probably still worth around what I paid. I think new was a bit more expensive back then.
Failed my 2km PB, had 400m left and stopped, looking back I think I may have been able to push on, not sure. Had a massive stitch on the right side which wasn't helping. Would have just been under 7mins, was hoping for a little sprint at the end, but anything under 7mins was all I was going for.
Followed the guys advice in the vid, 10 strong rows around 1:30/1:35 then settled to race pace of 1:44/1:45, but still failed, lol.