If you like Sager/Clevo machines, you should be OK with Metabox. Metabox, based in Perth, Australia, and owned by ITC Mobile Computing, is a boutique brand offering ostensibly high-end gaming laptops and workstations. The pricing for the N580HK may reflect the fact that:
a) It's simply a re-badged Clevo laptop, and
b) The Alpha series is Metabox's entry-level gaming line. If you look at the Prime and Prime X series, prices are rather higher.
Other Sager/Clevo-based brands include CyberpowerPC, MSI, XMG (and Aorus), and Puget Systems. Those are the ones I know about, but the list may include several other well-known brands.
Cheers,
GreyCatz.