From my experience, beauty does not factor in the quality of migingo. For me, the biggest determinant is woman's upbringing.
Women from Nairobi suburbs are high maintenance, yet return on investment is usually tending towards zero. You will take her to Artcafe in the morning for 'brunch,' Mediterraneo in the afternoon for lunch, Java in the evening for coffee, dinner you have to order from Debonairs, then clubbing you have to go to Mercury Lounge, where beer is 500 per bottle. Going back to the house to cash in your return, you'd think with her absolute USELESSNESS in other areas of the home(cooking, cleaning, motivating, relaxing etc) that she'd be extremely well verse on matters coitus in order to compensate. Shock on you brother! Anatokea na nguo za 1992, net ya upuzi kwa kichwa, na bedminton ni kifo cha mende style!