I would bounce as fast as they could get me a ticket.
Its an opportunity to live overseas, make good money, and learn a new business.
I know it would be tough leaving your friends behind but seriously you will make new friends in HK and you can keep in touch with your friends here as well.
If you are afraid to move on with your life and experience new things then you will be severely limiting yourself in future endeavors.
Just something to think about because the best opportunities don't always exist in your own backyard