The only thing that really matters is overall system performance, which means software / hardware combination. It is hard to see the benefit of ignoring SSD to

The only thing that really matters is overall system performance, which means software / hardware combination. It is hard to see the benefit of ignoring SSD to get high I/O performance vs. redesigning the software around I/O bottlenecks. Redesigning software to work on bad hardware is definitely a challenging project, but not always the best use of resources.