Why aren't there decent cathodes with this thunder effect

[Ace McPlane]

Look at how cool that looks..

 

but I've red the reviews and oh my god some of them are bad if you look close.

Some people are getting shocked, other people are having wires burn out on them, etc.

They're cheaply made by the looks of it.

 

I can't find any other company that makes this style of cathode.

 

What gives?

 

Am I wrong? are the decent ones out there I'm missing?

 

Even these ones are pretty darn hard to find too at least for a reasonable price.