Such high MTBF values must necessarily be estimates and, as such, are only really of interest to data centres where hundreds (and perhaps thousands) of devices will be in continuous use. Fretting about how long your SSD drive is going to last you is a waste of time. Bear in mind that the NAND gates in flash memory start to fail after a few thousand write cycles and so your SSD will start to lose capacity soon enough (as sectors are reallocated) even if you never experience an outright failure.
Data centres can measure SSD shrinkage rates for themselves and plan accordingly but they must rely on manufacturers' estimates in order to plan for (inevitable) outright failures. For you and me, things are simpler but less certain. Your SSD may last for months or years. Enjoy the high speeds that it gives you but make regular backups. Hope for the best, prepare for the worst, and forget about MTBF values.
Man does not control his own fate. The women in his life do that for him. -- Groucho Marx
Edited by micksharpe (Fri 01-Jan-16 16:24:38)