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Re:KISSmetrics' bizarre pricing decision by pchristensen on Tuesday July 13, 2010 @01:37PM (#1512125)
Funnels are never done because a) the market changes as you become more popular, have new competitors, the economy tanks, etc and b) there's no perfect funnel - you might see diminishing returns but you never know what will make a big difference.
Re:KISSmetrics' bizarre pricing decision by DJN on Tuesday July 13, 2010 @09:27PM (#1513296)
Good point but over a long term, markets simply aren't that volatile.

@fookyong's comment contains a lot of truth. If using Kissmetrics on a "Kissmetrics-optimized" site generates diminishing returns, surely that is a cause for concern. The original author's change rapidly enough to suggest that your experiments will yield increases in ROI