Comment by zarzavat

Exactly, people confuse "doesn't scale" with "is a bottleneck". There's many applications whereby hitting the limits of SQLite is either a physical impossibility, or implies that the application has achieved success such that replacing SQLite is the least of anyone's problems.

I visited a piano store once that was running everything off MS Access. If only they had switched to HA technologies, they would be able to sell millions of pianos a day!