[ruckusing]

By traditional I assume you mean the setup where you have an HTTP server which reverse proxies (either doing it itself) or to HAProxy which in turn proxies to the actual Ruby application server (e.g. Mongrel, Unicorn).

In the above scenario there are just way too many parts.

Having Passenger being an all-in-one solution is pretty great.

I think most people with most apps can be very happy with Passenger.

I have been very pleased with Phusion Passenger and eagerly look forward to 4.0 and the pricing for Enterprise.