[bradbatt]

> Why would anyone even make that?

Right? I thought the exact same thing. Seems like the time and effort and expense it takes to build a queueing system could be put into building a site that could handle infrequent heavy loads.

[sitharus]

If you're using something like an F5 for your load balancer you can implement the queue there. Cheaper than provisioning hardware for occasional peaks and F5s can serve a lot of traffic.