[sagher]

I agree!.. But not only that, I would also advise against buying second-hand SSD devices. SSD devices, unlike HDDs, degrade faster especially when not used carefully : it's generally advised to always keep sufficient free space on SSDs to keep the Write Amplification Factor (WAF) as low as possible.

Don't know about the WAF?... Read this for more:
Do SSDs Degrade Over Time?

So my next question is absolutely same. What is the maximum life of SSD 128GB variant? 
The newly available SSD's in this price range are not touch the 400Mb/s and 200Mb/s read write range. as i test many. even though all other tests are awesome. also china made SSD's expires soon. 
King spec
Lexar
Kodak
Goldenfir
XrayDisk
Kingfast
Hikvision
Kingdian

all have same speed and specs. and price range also same. they claimed 450Mb/s and 380Mb/s but not really while random check. 
Thats why i decide to go for refurbished. but my friend play with me double game and gives me a poor health one. 
So it's better to return and get some good replacement. 
i wish this topic keep alive because it is now a hot issue for every user who use SSD boot. or data backup.