Yup, that you can. Right now I train in a park. Durring the winter we train out of a rented hall. I have also run a commercial school. So I've had a go at a few different methods
A school can also charge very little / nothing and still be a bad school. Or it can charge lots, have all the fancy stuff, and still be a grea school.
For instructors that do this full-time as there only job they need to make a living at it. Same as someone working in a big Corporation. They want a stable income, a good income, and regular raises. Same as a person in any other job.
To do that you got to meet the needs of the clients. Thats the way business works. If these schools are making money and doing this stuff it is because that is what their customers WANT them to do.
So I guess I just have a hard time seeing why a business owner that listens to the customers and gives them what they want is a bad thing? If people didn't want these black belt clubs, patches, lots of belts, big classes, frequent promotions, child black belts, etc. These schools wouldn't have any customers. This is what most people want in martial arts training.
For those of us that want something different, well there is that too. But it seems kind of silly to blame all our problems on the people that do what the "mainstream" wants to pay for...