Board Thread:Wiki discussions and announcements/@comment-3308937-20150122092301/@comment-3017217-20150122130558

I think cost efficiency as a whole is a sub-optimal analysis. The much more beneficial analysis would be Cost/Benefit choice analysis.

Least Ratio -> Best Choice

As per Volibear.

Nonetheless this analysis requires "exponential" effort(cost)

valuable for single binary choices but the cost is too great to do the same for the number of Items Riot provides.

We would need to compare every single item with every other

Effort = [ Time invested for  the Analysis for 1 Item x ( Number of All items - 1 Item)] ^ 2

Restricting the analysis with comparable Items only would be optimal