the price difference is big because its not a well known brand or considered as high quality product. usually 2nd hand is half price of new, but depending on age and condition, can also be 1/3 new price.

buying 2nd hand high quality products is recommended if you dont have the budget. its better than buying something new but low end. usually high quality 2nd hand products will last longer than new but cheap products due to quality of internal components and quality of the build.