I miss the time when you could buy a computer that was actually different from an IBM PC...
OTOH, a current phone could emulate an Amiga in real-time without much effort. I could, conceivably, run an Amiga desktop off any HDMI equipped phone with a Bluetooth keyboard and mouse.
All-Free Software (BIOS, firmware) netbook with a Loongson MIPS CPU. RMS uses this.
Of course, you can still buy SPARC and POWER systems from Sun and IBM, respectively.
At least a Guruplug costs $50 less and has ethernet right onboard.