are you saying if I leave it on 24/7 SSD is better? even though you say its prone to failure.
Yup. But expect to lose your SSD within a year or two. SSD is exactly like those usb flash drive, and those flash drive dies within a year or so. As time progress, SSD technology will get better at long term self life.
For me personally, HHD WD black is the best option. High performance write, and long storage. That thing is a beast! Been using it for 2 years and counting!