Your post made me notice an error on there. I was using our monthly cost and forgot to add in the reserved instance one time cost. Just added an edit to the pos

Your post made me notice an error on there. I was using our monthly cost and forgot to add in the reserved instance one time cost. Just added an edit to the post. We are big fans of Lua (corrected typo) and much of the load is set, zset and bit operations. It's all the multikey operations (and the throughput we can push of those) that make Redis work for us. Since we are pretty familiar/comfortable with automating infrastructure, dealing with clusters wasn't a big hurdle for us. This really wasn't a major deciding factor on our infrastructure design. Good tools and good Chef cookbooks make managing pools of servers relatively straightforward.