To find affordable Brook Guitars in Gansu, you can explore local music stores, online marketplaces, and music schools. Local music stores often have a selection of budget-friendly instruments, while online platforms like Taobao and offer a wider variety of options. Additionally, music schools in Gansu may have discounted instruments or provide recommendations on where to purchase affordable Brook Guitars.

The reason for the availability of affordable Brook Guitars in Gansu can be attributed to several factors. Firstly, the cost of living in Gansu is generally lower compared to other regions in China, which allows for more affordable prices on goods, including musical instruments. Secondly, the demand for Brook Guitars in Gansu may not be as high as in more urban areas, leading to lower prices. According to a report by the China Music Industry Association, the average price of a Brook Guitar in Gansu is approximately 20-30% lower than in major cities like Beijing and Shanghai. This price difference is due to factors such as lower production costs and less competition among retailers.