I find myself drawn more to the funnier Let's Plays rather than the more informative ones. I prefer to play games myself so most of the time I'll play a game first before seeing if there's an LP about it.

Saying they're ruining the gaming industry is a bit harsh. What's ruining the gaming industry are people buying the same games over and over again without rewarding the developers who are trying new things. Yes I'm looking at you Activision. At least a company like Ubisoft is TRYING to do new things. And then some other big developers like Sega and Square-Enix have fallen on their faces.