I don't think we're being scammed into buying inferior products, but I do think it's good to know the limitations of what we buy.
Yes because most SSD manufacturers are now looking to charge for better "endurance" & I'd argue rightly so. The SSD market, much like smartphones, has been commoditized to the extent that enterprise & premium drives are their best profit makers. Don't tell me you want the SSD makers to give these products away for free, do you suppose Intel will also enable
ECC on their non Xeon (workstation) chips because frankly they're also a ripoff?
Considering NAND exhausting p/e cycles is the only thing that can fail on a SSD, endurance is at least 90% of reliability.
Still waiting on that test/study showing how TBW ratings correlate to drive lifespan, as far as I'm concerned these don't matter much except for QLC & even there Intel/Micron have shown that for most consumer workloads you're not at risk of exhausting them in the drive's warranty period. Now for workloads that are closer to enterprise or indeed sever usage you should get drives that are commensurately more expensive, even if just for the peace of mind.
How else does someone rate the reliability of the drive when you have never used it ?
If the Manufacturers Endurance rating is not good enough then what is?
And i'm aware things can happen during the warranty period so there is no guarantee.
The ratings basically show that the NAND is guaranteed to last for x
TBs written to the drive, the drive can fail before or after for a variety of reasons. Of all the long term tests I've seen, admittedly a fair time back, not one drive failed within these parameters. Heck Samsung drives lasted the longest & exceeded multiple PBs written to them
To answer your question, it's hard to say as of now because of a variety of factors involved. For instance we have no idea how operating drives (3D NAND) at high temps for an extended period of time affects the NAND "lifespan" or indeed what happens when you're using drives for read/write heavy tasks with say good airflow.
To map out scenarios where a standard TBW rating applies to all possible use cases for the drive, since the SSD maker cannot control what the drive is being used for, is nigh impossible. It's like saying AMD, Intel or Nvidia guarantee their chips work under a trillion other possible (computational) use cases & never fail within that 3 year lifetime. This is why you have the
lowest common denominator at work.