Agreed. I used tiling WMs for a long while (ion3, XMonad) and it was such a productivity boost.
Then I was forced to use a Mac for work, so I was using a floating WM again. On my personal machine, ion3 went away and I never fully got around to migrate to i3.
By the time I got enough free time to really work on my personal setup, it had accumulated two huge monitors and was a different machine. I found I was pretty happy just scattering windows around everywhere. Especially with a trackball's cursor throw. This was pretty surprising to me at first.
Anyway this is just my little personal anecdote. If I go back to a Linux install I'll definitely have to check out i3 again. Thanks for reminding me :)
It requires a bit of work to setup to your liking of course, but hey, at least you have an option to set it up to your liking