The following isn’t directly related to genealogy but it is related to something that concerns all genealogists: storage of information that we have found. Today, it is easier and much, much cheaper to save information in our own computers or in the cloud than ever before. Saving things in digital format is also much, much cheaper (and safer) than storing paper. However, there are signs that consumers are saving less and less these days.
For the past 35+ years or so, hard drives prices have dropped, from around $500,000 per gigabyte in 1981 to less than $0.03 per gigabyte today. See http://www.mkomo.com/cost-per-gigabyte-update for details.
Somewhat surprisingly, manufacturers are selling fewer disk drives to consumers these days than they used to. Consumers are not downloading and saving as many files as they used to, be it text information, music, videos, or anything else. Why not? It appears that the primary reason is that all those things are increasingly more available upon demand in the cloud. There is less need than ever to save things yourself when you can retrieve those items again and again in the future at any time. Even better, the version you retrieve in the future may be updated or be an enhanced version, such as a higher-resolution image or video or contain higher-fidelity sound.