I stupidly built an ITX system about 3 years ago now, was a Node 304 so i had the idea of sticking 6 big high capacity drives in it, the GPU is ever so slightly too long to get the last two cages in, so I've currently got about 6-7 external WD MyBook's hooked up.
I desperately need those 24TB drives to come down in price. For years I bought drives that only gave me an extra couple terabytes of space on the previous drive I had, they evaporates extremely quickly with 4k video files and ever increasing game file sizes.