So I have 3x 10tb wd drives for my plex movies and these drives are pretty expensive (350$ each). All plex files are hosted in the same drives.
I was thinking a out buying a cheap SSD drive (around 50-70$) and use this as the transcoding temp folder, to save the main WD hard drives from extra load, and to make the lifetime of the drives longer.
Is there anything I should think of when buying SSD for the plex transcoding folder? Any specific feature it needs to have to “last longer”? Since the SSD is cheap, I don’t care that much about the lifetime of it, but want to get maximal return of investment from it 
My only concern are the WD main drives.
PS: ram prices are way more expensive than SSD, so its cheaper to use SSD than ram for transcoding folder.