With or without GST, photography is an expensive hobby. But it's a lot cheaper than many other hobbies - just try taking your car, even a cheap one, around a racetrack for an afternoon and see the bills you get. You'd rather be the photographer. Horse riding? Tru a non refundable deposit of 25K and that's just the deposit. As for turning pro, it is a lot easier and cheaper to become a professional photographer than a professional cricketer. On balance I would say that if you aren't rich, photography is a lot more affordable than many other activities.