alt Hacker NewsFrom reliability perspective an used SSD is not a bad idea. Average SSD that has seen typical business / home use will become obsolete long before it reaches its TBW rating, and many drives last way beyond that. Keyboard, screen or even the motherboard are more likely to give up before the SSD.
At least in my experience SSDs are literally the only part that tends to fail.
Using a used SSD( Refurbished assuming direct from manufacturer might be ok) feels like digging though someone else's stuff.
Maybe they cleaned it, maybe they left business docs or other sensitive data. The risk to reward is too great.