I guess I didn't explain my "gut" feeling, which might be some logic worth considering.
People don't return SSDs if they work well. You can never* have too much SSD storage and there are always secondary machines with mechanical OS drives to improve if the SSD doesn't fit the bill for your primary buying reason.
An SSD is a refurb only if:
- It was faulty and repaired, in which case how do I know that the cause of the failure was repaired, rather than just the symptom being treated
- It was incompatible, which is pretty rare for a SATA drive these days. More likely it has an intermittent connector or some other minor fault
- It didn't perform as expected, in which case it may be one of these bait-and-switch examples where the sync. NAND has been swapped for async. NAND or worse.
I'd be willing to put up with some risk buying refurb boards or GPU's where people are likely to return perfectly-working items to the seller for compatibility, noise, installation errors etc. An SSD just works - it's like the easiest upgrade ever. The most anyone would ever have to do to get one working is potentially update a really ancient motherboard BIOS, but that's a point covered in the instruction manual or web-guide that most vendors include with their SSD's.