Obviously LP isn't going to put tons of complete demos on every LPU CD, they have to space them out to keep the trend going. And yes, they do have a lot of instrumental demos, but they also have a lot of demos with vocals too, it's common sense. We also DIDN'T see that with MTM, if you actually watch the making of DVD, the band says that Rick encouraged them to write scat vocals on a seed right away before they did musical work to it, to see if it was worth developing. You can see all the gibberish vocals on the making of MTM as well. Hybrid Theory and Meteora was when the band didn't put vocals on stuff until it was almost finished, but starting with MTM they have done the opposite of that.
I don't get why we have discussion threads on this site then. If I can't debate why I don't agree with something someone says or agree with something someone says, what is the point of a forum? You have your point of view and I have mine. Obviously neither of us are right or wrong, because ultimately LP will decide what they are doing with their demos, not any of the fans, LP always says they never listen to fan's input on stuff and will do whatever they want to as a band. The only point I am making here is that they DO have a lot of demos in the vault ever since they were a band, and they do have demos with vocals on them, as well as a lot of demos with completed music and vocals.