We can't be happy about 1000 because that would be something horrible has happened. If you want a realistic approach than say 5k at most but when you say 1k that is just a clickbaity title to get more views on your topic and try to convince people that you know what you are talking about, you don't.

Any regular person with a normal mind would know that 1000 is not plausible for now, yet maybe 200 years from now no one will be using bitcoin who knows, but for now there is no chance that 1k will be reached. Even if it does, we can't be happy about it because for bitcoin to drop that much there needs to be a bad news.