The only issue is those with unappreciative wives may have to think it through a little longer, these are a little less subtle than hiding the units in the discreet shelving solution posted before...

Wow, you are an asshole. Can't help taking a swipe can you? Only the worst type of people try to build themselves up by putting others down. Sad fucker. You are ignored.
What on earth are you on about?! Have you had a look at the KnC forum?! There's an entire thread dedicated to whether people have told their significant others (wives or girlfriends) whether they have bought a mining machine in the humour section;
http://forum.kncminer.com/forum/off-topic/humor/162-did-you-tell-to-your-girlfriend-wife-about-knc-orderThe same topic has been mentioned several times on Bitcointalk!! Not by me, and I have yet to even post on the KnC forum.
Xialla even started a poll around the subject there.
Some said their GF/wives were cool, some said they would never mention it to them.
If you've ever owned an arcade machine, or built a MAME cab you'll know of the exact same conversation. Ever tried to talk someone round for a gaming rig that size? It's a large heavy unpopular unit, unless it evokes fond memories of childhood.
It's not a swipe, it's being light-hearted. Stop being so sensitive.