Flight rates depend on booking restrictions,
you can fly fra-txl for 209 DM + TAX.

The 120' for SEN are true only, if you collect them after the qualifying for FTL (which than makes a total of 170'),
or if you go all way in one years it is
50' + 80' (+25%) which is 130'.

Since I fly 98% in Economy, the F and C
bonuses do not help.

The focus wrote, that you need only 28' for
Gold on BD, can anybody confirm this.

The second problem with M&M are the high levels you need for bonus travel, like
70' (which is roughly 10 roundtrips FRA-NYC in Y) for an ticket Germany-US or 35' (5 RT FRA-NYC in Y) for an oneway upgrade
D-US.

M&M is better for North American member with
the reduced milage levels.