> It's a problem for many people, for sure. On one of my mice, I bound a side > button to b2, and it works well enough for me. Other than that, I find > clicking the scrollwheel is acceptable with about 50% of mice.
A consistent way to remap the mouse button bindings would work. It's a lot easier to find an eighty-button gaming mouse than a Logitech ergonomic three-button mouse, these days.