Upload & Sell: Off
As you know, RAID-0 is not RAID at all. It's just a stripe, so if one drive hiccups, all is gone.
How that affects you is up to your backup strategies and/or workflow (how much you get done between backups.) I'll agree if you need the speed and are ok loosing up to a week's worth of work, then RAID0 may be for you. But if it goes down, it's not only a week of work gone, but another chunk of time...getting a new drive, swapping out the bad drive, setting up the array again, copying the OLD data back to start again.
Does RAID0 make a difference - sure, up to twice as fast as a single drive. But if you are looking for speed, and are only casually working on a weeks worth of images, why not invest in SSD? Not the space, but alot more speed.
For me, I run RAID10 on most things for speed, because I also get the redundancy. And when a drive goes bad, I ... do nothing. The array is still up with all the speed I had before I lost a drive. Then, when I get around to it, I swap out the bad drive. I had one box with 6 drives in RAID10, lost 3 drives and still had access to all the data. (the box was destined for retirement, all data was backed up, so I just hadn't gotten around to it decommissioning it or realizing drives were dropping)
Something to think about.