Named Zotac, since they find profit on mini pc, and actually delivers new or updated designs very often, as the fanless i5 zbox nano C series or the sphere or the gaming ei750 or en760, they profit where Apple also its a main competitor (also I think is the original mini pc, since before the Mac mini no other manufacturer deliveries real pc on such small package).Zotac is the new Mini PC master. They specialize in Gaming PC's and componets. That's where their profit lies.
They don't make tablets and phones.
Apples and "oranges".
Apple are Apples, and orange are oranges, but I don't believe is more expensive to R&D an zbox than a mac mini, if zotac managed to profit selling the hottest mini pc, why Apple can't if they sell much more units.
Another, u don't believe mini pc eat AIO market, if so hp, Dell and lenovo will fear on zotac more than Apple.