Why do you suppose people act like bastards without even taking a moment to meet you to decide if you're worth it?
If they will not talk to you, who told you all this stuff and how do you know any of this for sure?
And why Bak Mei and nothing else they can teach you?
Chinese sifus if born raised and traditionally trained in China can be interesting and they have different ways of thinking about students and training, I currently have 2 but neither is all that interested in money and both are very good at their styles.
One has been training just 1 style for over 50 years and the other has been training only one style for over 30 years. One has formal classes but does not advertise and the other does not have formal classes and does not advertise and he will not teach the public.
However my first sifu who I no longer train with who was trained at a Physical Education University in China is very interested in money and that is his main focus. He charges by the year, NO REFUNDS and to be honest he is not worth the price but he has a rather large number of students and gives out meaningless certificates like crazy. He too will tell people why they should not or cannot go train with others in the area and I Know for a fact the others in the area do not talk to him at all so how does he know this? He doesn't, he just wants the unsuspecting persons cash.
As to it being a Chinese thing not to teach the public, maybe yes, maybe know, but it depends on the teacher and in some cases as with one of my sifus they have good reason not to as far as they are concerned and that is the way it is deal with it. Does not matter man woman or child he will not teach to the public and he personal feelings on this issue are the reason and to be honest I agree with his way of thinking on this issue.
As for paying for what you don't want to learn. Here is a bit of advice on traditional CMA sifus. You do not tell them what you want to learn because they know better than you what you need to learn to get where you want to go. And to be 100% honest they do really know more about it than many of their students do. Americans in general do not like being told what they can and cannot learn but that is the way it is and if you do not like it I suggest you look for another sifu or another style.
If you are approaching any real, traditional CMA sifu with the attitude of I want to learn this and only this, or you don’t need the rest of the stuff just this style or this application, they will likely tell you they are not excepting students. In their opinion you already have the wrong attitude and they will not waste their time.
Also if you or anyone approaches my sifu that does teach the public at certain times and say I want to start classes he to will tell you he is not taking any new students right now. But he will also tell you when to come back if you are still interested.
As to the $90 and month, compared to what my fist CMA sifu charges that is cheap. But compared to what I pay for my other 2 sifus together that is rather expensive.
Also the age of the sifu can make a difference and the area of CHina they learned in can make a difference in thier style of teaching and how much they actually say.
You may want to get a copy of "The Sword Polisher's Record: The Way of Kung-Fu by Adam Hsu". It will give you a little insight into traditionally trained Chinese sifus that teach Chinese martial arts and save you a bit of frustration.
EDIT:
Another book you may want to consider
The Making of a Butterfly: Traditional Chinese Martial Arts As Taught by Master W. C. Chen by Phillip Starr