The proven technology mantra
It's an often repeated mantra among "product people" that:
When building something new, simple and proven technology wins.
The peculiar thing is, there is no amount of empirical evidence that would make it possible to disprove the logic of this mantra.
After all, we're talking about "proven technology", and if something new consistently worked better that would also be considered "proven technology".
It's a self-fulfilling prophecy.
Here's a better way of stating what I believe Mathias is conveying in his post:
If you need to get something done in a hurry, use the tools you already know.
However, if you have the time and the interest, there is no need to shy away from learning and working with new exciting technologies.
Who knows, you may end up proving a new technology.