When are we going to be finished with raw speed tests? I get it that faster is better. But I've always been a believer that good design will get you farther tha

When are we going to be finished with raw speed tests? I get it that faster is better. But I've always been a believer that good design will get you farther than choosing one software/hardware/infrastructure over another. Also, I get the comparison of MongoDB and Couchbase. But why Cassandra from DataStax? It's a completely different technology with entirely different strengths and weaknesses. There are certainly overlapping use cases, but it seems like an odd comparison. The better comparisons would seem to be comparing Couchbase to vanilla CouchDB and Cloudant's version of CouchDB. I guess you could throw in MongoDB, but MongoDB and CouchDB have different strengths and weaknesses. Raw speed alone doesn't exactly leave any technology in the rearview mirror.