I am not making anything up ...
So you think $180,000.00 per hour is too cheap? Dude .. you seriously need to rethink your economic strategies.
Please enlighten me .. perhaps you always thought it was about something else, but my point has always been that a DWG is always infinitely more useful than a PDF or paper plot, particularly if I am being paid $180,000.00 per hour to reclaim them for the client. So please, what IS your point .. if your point is that I shouldn't be saving old revisions, then you are incorrect, because I can make $180,000.00 per hour retrieving them. That is 180,000 reasons to save them.
Now, you also have stated numerous times, not in this thread, but elsewhere ... I would provide links, but you know what I am talking about ... that by flattening a drawing you make it marginally useful. A PDF is the ultimate in flattening a drawing, is it not? As a result, a PDF is not nearly as useful as a DWG, or am I wrong again. You have stated more than once that you only save the PDFs of the projects revised drawings, or was I dreaming that too? You also said that you simply revise the drawing and don't keep the previous revisions separate, and unless I am unaware of some ecclesiastical force at work, that means you have discarded (i.e. lost, failed to maintain etc.) the previous revision.
Now, let me ask you a simple question. If you are aware of the proper storage of data for future possible application, why are you hell bent against storing previously revised DWGs for future possible application, when it has been clearly shown that not only is future application possible, but very probable.
Just face it, you have absolutely no clue how the architectural process works and as such, you would likely fail due to either wasted time recreating something that you could/should have maintained as a DWG or you will go broke because your clients will go somewhere else for their product.
While your company may be making millions on these projects, you have to keep in mind that the average price for architectural drawings is about $1.25 PSF .. that means a 2500sf home would pay roughly $3100 .. this is for the ENTIRE project, if you charge much more than that, you won't get business, if you charge less, you will go broke.