I don't understand why people should be encouraged to put up with 'average' when 'better' is readily available.
Better a/c are undoubtedly
available, but not at the same price. Think of it as a value for money thing - if you train on the 28s, do you stand a better chance of becoming a good pilot than on the 38s? What about 150/152s? You could argue about which is 'better' all day. Frankly though, they all do the same job, with individual differences.
Much of a muchness really isn't it. Just do what's cheapest as far as initial training goes (as long as you receive good instruction), that would be my philosophy. Save money to fly 'better' aircraft later on