The margins on Monster branded stuff is high so they'll just keep selling it despite it not being any better than the generic cable for 1/3rd the price. The generic stuff at the shops tend to be sold out as well unsurprisingly.

I've only heard a handful of stories where the insurance for those power strips have actually paid out. The vast majority have had them all worm out of the agreement via some loophole. The best one seems to be that they can't pay because you used the equipment without their super duper ultra power strip at some point in time and therefore it accumulated some unseen damage from that already.