Josh,
In "SAS for Dummies", Chris was referring to using the "Local Computer" vs "SAS server" to get the data. If you are bringing in data from the "local computer", EGuide has to read the data and then send it off to the SAS server for processing (it may be read 2 or more times to accomplish one task and may have to traverse a small pipe). If you use the "SAS Server", then 1) the data are already in a SAS dataset (or linked to a database) and 2) the "SAS Server" accesses the data directly, without any EGuide client involvement.
Depending on what you are trying to do and your hardware environment, one method could be superior to another or vice-versa. There is no universally applicable answer to your question.
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