I mean, their products aren't that great. Their desktop lineup is quite frankly rubbish.

Their specs aren't great compared to competitors at the same price point, but specs are a small part of what makes up your desktop computing experience.

i haven't seen a desktop without internal wires other than Mac Pro

Is this your selling point for 'great' ?

Well, it looks good.

how often do you look inside of your PC? :)

Single board computers are numerous, mostly but not entirely at the low end, and no cabled interconnects is the defining trait of the class.

The reason we don't see as much of this in full-size desktops is because density is clearly not the objective and it would mean sacrificing the modularity and flexibility of established standards.

Or in other words, more expensive with no real gain besides aesthetics, which aren't worthless but I'd bet they aren't worth _much_ for a box which spends most of its time under a desk concealing its insides.