Quoting Dr W - Fences Support,
Again looking to draw out how people are using the system. It sounds like at least a couple of users are using it to switch between different layouts entirely. Backups are a poor use of the system; they require going back and redoing the backup of the old, then restoring a new. This is not a great system for that use.
A better system would be to offer ability to switch between layouts. This would function something like, it automatically saves the previous one before switching to the new one. Sortof how the new multi-mon system works. Learning this allows us to create a better working system that is more accessible to all
This does present a good question. I, myself, do not have a need for an automated backup system and would highly favor a multi layout system with easy switching. I do understand, that maybe you are hinting that there may be less tech savvy users that may rely on a highly advanced backup system rather then multi layout system?
Therefore, for the sake of topic; can pages provide a multi layout system? Maybe.
I do use pages quite often
For me it's usefulness tops out at about 3 pages before the system, in its current state, starts to feel too full / busy. I do suppose that maybe easier navigation could fix that. For example, shortcut keys per page could be used (i.e. shift + #1-0) and maybe a page drop down box of some sort that lists all the (renameable) pages for easy access.
Of course this system also depends on if fences could handle 50 pages without a system / program slowdown.
If it can't then maybe it will be interesting to see which layout system is more in demand. And in that case I would chose the later.