I ruined a $150 MAF meter despite careful oiling after cleaning - according to instructions (TRD filter element). I am a careful person, and as such with these results, feel it is an unnecessary risk when a dry filter is adequate. Not an overblown myth.
"I (as well as MANY people I know) have run oiled filters for 15+ years and have never had an issue." <=Some MAF meters/sensors are likely to be more sensitive to contamination than others. Some engines (5S-FE for example) don't even have MAF meters to contaminate.
ComponY: Actually, it appears that the JCWhitney CAI you are proposing to purchase is not oiled, so maybe there is no reason to debate this issue. However, I believe your stock intake system is every bit as good from a performance standpoint as the one you are proposing to purchase.