I don't think repair manuals are completely dead. Dying? Maybe, but not dead. Internet forums may have replaced physical manuals as the go-to option these days but there are plenty of people that still want a physical book to look at. I have been using Internet forums for over a decade now and joined GMTC to get some first-hand knowledge about how to work on my truck but I also recently purchased a physical repair manual. Think of it as one supplements the other. If you have/use both you can't go wrong...or at least shouldn't go wrong.