Using any tool that vibrate much like a string trimmer will irritate where my spine is pinched and I'll regret it for months. It makes me feel useless. Fusing 4 discs in my upper back or neck would almost guaranteed make me feel more useless.
I definitely can't pretend I'm young anymore. It isn't just pain, and when it is pain it's not the worst pain. It makes me unable to feel my arm. I had to get an epidural of steroids to get the inflammation down to get feeling back, and I seem to be at least mildly allergic to that .
I wanted to reply that snapraid or the equivalent will lead to less wear and tear, and provide reasonable redundancy that you can trigger as needed. It's also a lower electricity bill and allows mismatched drive sizes.
It's also arguably easier to recover data on failures.
Can't help with the drive costs unfortunately.