I guess I am the black sheep of the group because I have used all kinds of shoes and have never had any problem. My son is 26 months and he has worn sneakers, flip flops and sandals, NONE were Stride Rite, and he does not have any problems. In fact, he is very athletic and active. He started walking at 8.5 months. And, Stride Rites are so damn expensive, for something they'll only wear a few months.
I also have 2 nephews and they wear NON-Stride Rite shoes too. One is 6 and the other 3, they have never had a problem.
I like some of the Stride Rite styles, they have some cool looking shoes but not for that price. I guess if you are rich you can buy them. I, for one, am not. I have found very cool and cute shoes at Baby Gap, Old Navy and even Payless.
I have a friend who buys Stride Rite, but only because her son's feet are extraordinarily wide and it is very difficult to find shoes that fit. But she would prefer to not "have" to buy there because of the prices.
I guess if your doctor says there is a problem and you need special shoes then you have no choice, but the way I look at it is, children walked just fine before Stride Rite.
There are my 2 cents.