No point if you get a great idea that you want to patent, but someone has already patented it. Quick to market is good, but there is also a problem with being “too quick to market”. There are contexts where the competition is significantly better and what you are taking to market is significantly worse.
You can take “vaporware” to market if the vaporware “has” some features that make it interesting to prospects. You still run an “expectation risk”, but you could get away with it… vaporware has its uses.
However, if your offering is just like someone else’s there may be point producing it, but not in taking it to market before it is ready. Here is an example of a site that is being advertised on Google even though it is virtually blank. That’s not good marketing.
Marketing is not the creation of any type of awareness.