I have a nagging belief that people sell their used stuff because it no longer works right. After all, that's how I decide to get rid of my old stuff. I move on when something is broken or prone to increasingly frequent breaks.
So I caved this time and bought something from a reputable dealer since it was such a great deal, but as is. No returns. Now 2 weeks later it will cost me at least a thousand dollars to fix it. About the difference to what it would have cost to just get it new.
Why do I do this to myself! Ugh.