Dunno about a myth. More like sloppy research.
While there are certainly many viable options-buying strategies available to traders, options expiration data I obtained from the CME covering a three-year period suggests that buyers are fighting against the odds. Based on data obtained from the CME, I analyzed five major CME option markets - the S&P 500, eurodollars, Japanese yen, live cattle and Nasdaq 100 - and discovered that three out of every four options expired worthless. In fact, of put options alone, 82.6% expired worthless for these five markets.
source: http://www.investopedia.com/articles/optioninvestor/03/100103.asp
The numbers represent the percentage of options that expire worthless.
Year CME options S&P options S&P puts S&P calls
1997 76.3 81.7 94.1 54.8
1998 75.8 82.2 93.1 43.9
1999 77.5 84.7 94.5 66.7
Average 76.6 83.3 94 55.3
source: Options on Futures, by Summa and Lubow
The Chicago Mercantile Exchange estimates that approximately 80% of options held through expiration will expire worthless.
source : James Cordier & Michael Gross - May 26, 2006
Now, why did all the three sources above make the claims they did when:-
While 80%-90% of option contracts that are held until expiration do become worthless, only 30% of all options are held until expiration. Another 60% are sold or offset, and 10% are exercised. This means that 25% of all option contracts - not 90% of them - expire worthless.
source: Jim Stanton - April 4, 2006
That 'feels' a little more like real life.
What it doesn't give us though is any flavour of how those individual trades stack up. 10% are exercised. At profit or loss to whom - the buyer or the seller? 60% sold or offset. Again, at profit or loss to whom - the buyer or the seller?
Don't think I'm sticking my neck out when I suggest the sellers of option premium are more likely to come from the savvy, professional or at least, the more experienced segments of the trading community. Whereas the new players/traders in options and trading generally, are more likely to be buying options. Forgetting the law of the Jungle, we still have the fact that 25% of all options expire worthless to the buyer.
This pretty much agrees with my experiential take on both sides of the options debate and provides sufficient statistical bias to confirm my personal position that I'd rather be selling than buying premium in most cases.