I love talking about scalability. Everyone has their own opinion, their own way of performing benchmarks and their own conclusions. And we all know that this is very silly. I recently came across an article by Ted Dziuba that summarizes it very nicely for you:

Shut up about scalability, no one is using your app anyway.

I love how the author explains the use of the word scalability in this day and age:

The most common butthurt about scalability is this: choose a technology. If you like the technology, claim “technology X scales better!” If you don’t like it, claim “technology X doesn’t scale!”

You can find the article here.