480 you give me hope, In the past I have been very outspoken in regards to how silly this looks and it always seemed like I was the minority in thinking so. Maybe we look to far into it because we need to see nice neat romex used properly in order to sleep well at night but overall I always just thought it looked unprofessional. Now I have solace.
Actually, I think it looks cheesy because it goes back to the employer not wanting to pony up for the good stuff.
Fly-By-Night Electric buys a van, and throws a bottom-end ladder rack on it. Joe Sixpack, who works for FBNE, is assigned to that van, and needs to carry some tall ladders with him. But the owners have the attitude that they've already spent enough money on the van, ladders and rack so why on earth would they want to spend $10 on a set of ratchet tie-downs? Now, Joe certainly isn't going to pay for them himself, so his only alternative is to use scraps of NM. Maybe some 10THHN.
Either 'wiring method' employed, the owners fail to see how much money they're spending to pay Joe to tie and untie the ladder every day, and all the wire that gets used over time. Heaven forbid if a $300 ladder disappears some day.
I figure my ladder rack paid for itself in the first six months. 'Free money' since then.
I feel the same way about using PVC pipe as a conduit carrier.