Um, Mr. Math Genius,
Southwest awards flight credits not miles. It is possible to earn a free trip every 3-4 round trips (help me out here folks, I don't fly WN)
regardless of fare paid on those 3-4 trips. One can then use that free trip for a flight that is potentially more expensive than the sum of the three-four cheap trips.
I don't know why you feel the need to beat this thing to death, but you're going to get zero support from the folks here on your unfounded and short-sighted (and caluclated) assumptions. Why not just get over it and get on with your life?
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by FT wannabe:
Anyway, the main reason why SWA and JetBlue are profitable is due to the lower cost structure. Many factors contribute to the cost - and surprise enough FFP is actually one of them. Nobody can award double miles (and above) for sub $200 C-C RT. Not even SWA..</font>