That isn’t a big deal if you’re just archiving a lot of documents, since storage is cheaper than ever before, but it might matter if you’re uploading them to the internet. Normally-sized text will be as legible at 200 DPI as it is as 1200, and at a small fraction of the file size - The 200 DPI scan had a size of 57.5 kilobytes, the 1200 DPI scan had a size of 1.6 megabytes. They were scaled to be about 650 pixels wide.
The top text is a 1200 DPI scan of 11 pt font, the bottom is a 200 dpi scan of the same font.
