Chris,
While I may risk incuring Maverick's wrath, I happen to agree with a lot of what you just said, or at least as it relates to a point I've made before, but which, I fear, continues to get short shrift. That is the importance of trading a strategy that is consistent with one's personality. While this applies to any form of trading, it is, in my opinion, particularly important with trading options.
Many options traders seem to apply myriad different positions to various markets because that is what the "playbook" calls for. They run their scans, find skews or especially high or low relative IV levels, and put on the "right" position. They then wonder why the position didn't work out as it was supposed to.
The answer usually comes down to one of two things. Either they didn't fully understand the nuances of the position they traded, the synthetic relationships, and how and when to adjust in the face of changing market conditions. Or they "fought" the position and didn't allow it to work out because trading it was psychologically difficult (i.e. they were long theta and delta negative and couldn't bear the prospect of losing money while the underlying and the rest of the market went up).
Bottom-line, they were trading positions that they should have avoided until such time as they developed a better understanding of the strategy or themselves.
Hence, while I acknowledge the perceived drawbacks of relying on a narrow set of strategies that may not work in all market conditions, I submit that developing a deep understanding of how to trade a strategy or two profitably is far preferable to the alternative. On the other hand, those who've evidently mastered everything under the sun (Mav?) is in an enviable position and my hats off to them. But since such profound wisdom is probably beyond me at this point (you can't teach an old dog too many new tricks, after all), I think I'll just stick to trying to hit dull singles on a regular basis with my boring niche approach.
HD