The beauty of memcached is that it isn't on steroids. It just works, and works well from VPS-running-rails-side-project scale all the way up to multi-datacente

The beauty of memcached is that it isn't on steroids. It just works, and works well from VPS-running-rails-side-project scale all the way up to multi-datacenter-Facebook-platform scale. You can't push intelligence into your memcached tier because it's all spine, no brain. Exactly how I want my cache to be.