On average in Aviation you could say, you get what you pay for. However that does not necessarily mean the best aviation schools are the most expensive one. It also becomes a question what is the best for you. For example it is not necessary to attend University if you wan to became recreational aviator. However even if you want to became an airline captain one day, does not necessarily mean you have to have University degree. It is also obvious that recreational aviation training schools will not be sufficient for you to fly commercially. It can be cost effective starting point, but lessons at higher level will be required for a commercial pilot.
There are many different pathways how to achieve your flying goal. This website will help you to decide what is the best option for you.