Ugh, this crap is what makes selling stuff annoying. Of course the price is negotiable, but if you make me waste an hour of my time by showing up with a lowball offer and a sob story, I'll be annoyed.
I had people try to pull this on a $1800 car -- "oh, I can only go $900, you see I'm only driving a little, and it's for my wife, and.." The car is worth $1800, you and I both know it, make a reasonable offer or GTFO.