Take a peek at the article and associated benchmark post. I assume that "Hosted AWS providers #1 and #2" refer to MongoHQ and MongoLab. You'll see why they made

Take a peek at the article and associated benchmark post. I assume that "Hosted AWS providers #1 and #2" refer to MongoHQ and MongoLab. You'll see why they made their choice. But as someone else pointed out, it's worth asking whether the new SSD instances will help those other guys catch up or if there's more than disk performance bottlenecks going on.