I guess it's not at the top of my list that a KJ's gear look clean and neat as long as it sounds good.
But when it sounds like hell and LOOKS like this?

Damn! Consider that you've invited a bunch of people to your house for a karaoke party. Front and center under the spotlights on stage you see THIS. Would it color your opinion of how good that host is?
Would it make you want to come back if the wireless mics kept going out too (what? no wired backup?) and the singer monitor failed?
My take is a quality show not only sounds good (both how the host and singers sound) but looks good too. Can't take but 10 more minutes to either gather the wires together with some velcro ties or run them under the tablecloth. I don't think someone hiring a professional karaoke host (or DJ) should expect anything less for their money...unless of course they're paying such a ridiculously low amount that they're happy to get what they get.
Me? I vote with my dollars. I spent about $40 that night. I will not be back to this show.