The "machine" cost is no where near the "human cost". Unless you have a very specific case (to which you should optimize), there is no need to rewrite anything in X. Hiring additional people that knows X will eclipse whatever you are going to save by using fewer machines.
At the end of the day, the bigger bottlenecks are Databases and disk I/O.
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The "machine" cost is no where near the "human cost". Unless you have a very specific case (to which you should optimize), there is no need to rewrite anything in X. Hiring additional people that knows X will eclipse whatever you are going to save by using fewer machines.
At the end of the day, the bigger bottlenecks are Databases and disk I/O.