The less pieces you have the lower the complexity. The lower the complexity the easier it is to fix when stuff breaks. The easier it is to fix bugs the faster

The less pieces you have the lower the complexity. The lower the complexity the easier it is to fix when stuff breaks. The easier it is to fix bugs the faster you can get a real product shipped. You would be amazed how much load a single box can handle. I wouldn't split until I had to. My current setup is a single FreeBSD box sitting in a colo downtown that putters along without a hitch.