The hard drives in my 18 y/o Win 98 (nee Win '95, nee WfWG!) STILL work. One problem is now, it's almost impossible to find a hard drive that is even as small as 1 TB; 2-3 TB is are now common. I don't know HOW people populate such drives, (unless they store movies up the kazoo?) I'd be MORE than happy with a couple of 250 GB drives, rather than a single HUGE drive, but small drives either are no longer manufactured, or are only available "used." And as you stated, the reliability (and/or longevity) of SSD's is still unproven. Either way, backups are mandatory.