Well the extracted edges, associative or otherwise (if you do nothing else but set the extraction option), will make the file size larger, which means that it will require a bit more memory to open the Drawing. Now since you've set the extracted edge view non-associative, if the drawing changes there will be no additional overheard (i.e. memory) needed when the Drawing is updated since the drawing will not update (being non-associative).
That being said, the primary reason for even extracting edges, particularly if you leave them associative, is that the NEXT time you open the Master Model Drawing, you don't have to open any of the 'assembly' Components, which will significantly reduce the memory, and thus the time needed to open the Drawing. You can continue to open the Drawing, add dimensions, annotations, notes and labels, fill in tables, etc. all without having to open any of the Components. And when changes are made to any of the Components or you need to add an additional view, like a Detail view or a Section view, all you need to do is fully open the Master Model Drawing once, update all the views, make your changes (if you're actually adding additional views, be sure to extract the edges of these views as well) and save the Drawing file and then you can go back to working on the Drawing without its Components until it's time to update for changes in the detailed models. This can significantly help to improve performance (when opening only the Drawing but none of the Components) when working with Drawings of large complex products.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
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