Originally Posted by
Polytonic
It's occasionally a useful quick reference (nominally by color). I appreciate having it over not having it.
That being said, I think the only real viable PQP runs these days are AC/NH biz fares and maybe SK premium economy (whenever those $600 specials come up).
There are a number of others, but it's not easy. Sometimes cheap bulk fare TK business can be attractive, say LAX-IST-BKK is 4k PQP but can sell for $3k or less at times.