I think it would be a terrific idea. As far as the organization of maps goes, I don't think the two idea (geographical or chronological snapshot) are exclusive. Once the maps are copied, they can be sliced and diced any way necessary - including selling individual maps, if there is enough interest in that.
I mailed a DVD with the first 191 maps to Jason today, so if all goes right it wont be long before they can be downloaded. The map series include Finland 1941, 1942, 1943, 1944, Locations of units and strength of the Brandenburg Division over a 13 month period over all of Europe, North and Northwest (these were maps made of the remaining German unit locations and strengths, and areas they were to move to after the surrender... very interesting that the OKW was still functioning in the few weeks after the war!).
I scanned the maps in at 600 DPI, which so far make everything readable, I would not do it less as it would not be worth while to folks. I would do it higher, but it would take so long to scan in one map (out of 5,000 plus), and downloading them would take a long time in groups. I think the 191 maps I sent Jason (compressed) were 1.5 GIGs.
The DVD I sent had a capacity of about 4 GIGs. I only had 191 maps done and wanted to get the process rolling. Hopefully every 2ish week I can get another batch to Jason, but we need to see how this goes the first time, with uploading them, purchasing them and downloading. I will be able to send out hardcopy CDs or DVDs for completed maps as well.
Jason was out of town this week but he said he got the CD and will get something up soon. That was about 200 maps sent to him, and I scanned in another 100 this past week (not yet sent) (set includes series of Serbia, Balkans, Slovakia, Hungary, Syrmia, Crete, Corfu, Brac, Istria, and Belgrad. Slowly but surely we will get these up!
This is a very exciting development, and I will certainly be making purchases. I live in the wrong Washington, 2,500 miles away from NARA, so this will be a wonderful resource. Thanks for what I'm sure is sometimes very tedious work.