Sophia,
I answered your survey based on my behaviour now.
However, I've been diving for over 30 years and I've gone through many phases of keeping a log book.
- In the early days, I kept a log book in a paper log because my instructor convinced me that it was important. He never really explained why. The most interesting part about that log, for me, was the cumulative bottom time. I remember when I passed the point at which I had spent an entire day (24 hours) under water and an entire week under water..... those seemed like milestones.
- The first time I had a laptop I converted it all to Excel and made a fancy spreadsheet for it. That was in the pre-internet days (or at least int he pre-internet-is-for-more-than-downloading-porn-slowly days).
- After my first serious relationship broke up my GF took the laptop, including my dive-log and deleted it. I think I lost records of about 650 dives
- I then went back to keeping a paper log but since I was already an accomplished diver at that point I didn't bother with the same details, like pressure groups and stuff. Instead it was a chronicle of dives I've made that included a lot of under water (navigation) maps so I could find interesting features again. I did this for several years and logged another maybe 400-500 dives in this fashion.
- At some point i realized that I was diving the same sites again and there was little new development in terms of exploration. So I stopped logging entirely. What also contributed to this was the fact that the internet had become handy for more than just downloading porn slowly and there were all kinds of websites popping up where I could look up a description of the site online instead of trying to find it in my paper records. In essence, my log book had been digitized by other people, some of whom did a considerably better job of it than I did.
- I no longer log dives. I do have a good idea of how much I dive because I know how many courses I run in a year and on average I dive once a week for myself. my diving has been pretty steady at somewhere between 70-100 dives a year for a long time. I could fill up a book with a ledger of that but literally nobody, including myself, would ever look at it again.
As an instructor I do tell my students that it's important to make a thorough log of their first 200 dives for the purposes of con-ed but to keep a log after that for as long as they enjoy it or find it useful.
I think you'll find that I'm no exception. Perceptions of the utility of a dive log are often not stable as one gains experience. It might be worth your while to narrow down your target audience more to, say, divers with X years of experience, or at least to add a question about the experience level of the diver in your survey.
good luck.
R..