The availability of historic USGS topographic maps in digital formats

If all of the historic USGS topographic map products are available digitally and in easily accessible formats that can be used on a desktop, laptop, or tablet, is there still a need to have printed copies (at a variety of map scales) on hand? Keeping in mind that the topographic mapping program ran through 1992 and only a small percentage of the maps were updated after that (and the estimated median date for the currentness of a map was 1979), are the available printed maps up to date enough to be of use? Do surveyors, geologists, botanists, archeologists—or any other professionals who require topographic information for fieldwork—need to carry printed topo quads with them? Is there a need for geographers to have printed versions of several quads when seamless digital copies (which can be examined side by side) are so readily available? Are there situations in which a printed topo map is necessary?

So not exceed one page, can be shorter. Use short simple phrases without complex vocabulary.  If necessary use only one source.