I'm left wondering, does Drizzle have that much value? When creating applications, I know that the things I worry more about are replication, sharding, federat

I'm left wondering, does Drizzle have that much value? When creating applications, I know that the things I worry more about are replication, sharding, federation, etc. I don't worry about the speed of an individual query or even the utmost performance on a single box. I'm more interested in how I can scale it beyond that. Now, many of those things are rarely needed, but similarly it is rare that MySQL or PostgreSQL won't handle your load on a single box. So, why put the work into optimizing speed rather than scalability?