Originally the hardware drove sales in the form of graphics (paint, ray tracing), games, and the NewTek Toaster. Now I see the software in the form of the OS driving sales. Let's vote: how many people enjoy using Sudo, Administrative privileges, or other crap to run their computer? How many folks do backups because on those systems you can't just copy your boot partition to another location with a copy command? How easy is it on a Win/Mac/Linux system to run a simple script by clicking an icon (iconX)? Change your startup commands? Change an early startup menu to select boot drives and such? Configure almost all aspects of your user interface (i.e., not Macs)?
OS4.1 is fast, modern, backwardly compatible, and beginning to support more than just USB, PCI and SATA drives; it runs well on even 15+ year-old CPU's and looks beautiful. Just think about it.