Can somebody please explain to me how the 737 can be the cheapest option (operationally speaking) for some carriers, and the A320 for others. There must simply be a cheaper aircraft to operate, or is this not the case??? I've asked several of my friends, and they arent any help. Although after reading as many messages relating to this question on here I have 2 theories.
1# The A320 family is cheaper to purchase making any possible operational costs reduce over time.....
2# The 737 is more suitable for operaters that already fly the older models due to crew training, maintenance etc etc.
Also the A320's appear to be favoured by airlines needing more cargo capacity, why?