The demo for God of War 3 stopped me from even playing the final game for an entire year. It was horrible. The final game was GoTY worthy.

This was my first thought as well. I wouldn't say it was horrible, but the final game was far better than the demo.

Absolutely.

The OP was a rant against everyone that says "it's only a demo, maybe the finished game will be better"

While there is an extremely remote possibility this is true, the odds are in fact seriously tilted against the statements apparant gauge of this being feasible. Generally the way people talk it sounds like it could go either way. In reality, it's a once in a blue moon event to not enjoy a demo then go on to enjoy the final product.

My issue is that this still seems to be happening! WFT? How many times will people need to be dissapointed by a crap demo followed by a crap game to finally accept "Demo = Game = Quality + or - a few points"

You are right but people just call it a demo since we download it from demo section of our respective xbox/psn stores. People were raging on internet and gaming websites were trying to do the PR work for the developer saying it is not demo. Games were taking the bugs in the beta as representation of how the final product is going to be as the final game was just week or two away. 

It's a legal disclaimer so they can sue you if you don't buy the game because the demo was bad.

Not FINAL quality, but like 90% of it.

There have been very few cases where the demo gameplay was drastically different from the final product. You get small tweaks, most of which you won't even notice.

Its not sometimes the demos are not always up to date and what not. Also the DMC Demo was great. Also you could SSS rank DMC 3 easy as hell some of these so called fans just trip for no reason.

But the demos for 2K13 and GoW III were so different from the actual product D:

Which explains why many games don't have demos. It takes away from the development of the full game. Better to just let people be hyped and blindly buy into the game :D

You may have a poin there. I played the GOW3 demo but I don't think it reallyl did too much to convince me to buy the game, but I bought it earlier this year and definitely the best game I've played on PS3. Can't belive how they integrate QTE's so seamlessly into the game.

I'm pretty worried about the GOW:A beta, I think I'd rather just wait for the full release and avoid ruining the game with a bunch of bugs and glitches.