I think the author was basing that statement on his previous assertion that:
If weighted equally, the prices paid, following Kayak’s algorithm, were 2 percent higher than the initial March 29 prices. Wearing my statistical hat, I’d call that a tie between the two strategies.
The author also claims that:
in user surveys that in addition to appealing to quantitative types, another group of regular users said Farecast gave them “peace of mind.”
So if the price difference is 2% (basically a wash either way), then waiting would be a superior strategy because it "might actually relieve some of the second-guessing that occurs when you’re left to your own devices," and that peace of mind may be worth more than 2% of the ticket cost.
...or at least, I think that's the author's point.
Comments
I think the author was basing that statement on his previous assertion that:
The author also claims that:
So if the price difference is 2% (basically a wash either way), then waiting would be a superior strategy because it "might actually relieve some of the second-guessing that occurs when you’re left to your own devices," and that peace of mind may be worth more than 2% of the ticket cost.
...or at least, I think that's the author's point.