Fair line of thought tonty, I was balancing out the cost of the miles to the savings given. That, plus there is no earning potential on the money that you are spending that does not make it a good option for myself. n( n(
You are correct, that is a personal view, no doubt if my situation were different I may favour the savings given by any airline - a rare thing these days. xx(
Are MPM PE not an ordinary K fare, whatever price it is on the day of booking, with a reduction taken off for the miles 'exchanged'? Looks to be the same for the MPM Eco and UC (O/N/X or Z fares) Only thing I can think of for being in the same bucket - plenty of letters in the alphabet

Yeh people should research before booking, makes no sense after the fact, unless the service provider in question has some kind of price matching policy if cheaper prices pop up within a certain amount of time of booking - wishful thinking

This all being said - if you are happy with the price - book it and don't look back y)