Go to Temple street, its like petaling street. need to speak in cantonese to bargain. i dunno if you think its cheap or expensive, but i think its expensive because things there are 2 to 3 times the price here excpet fast food. Normal 3 star hotels are already 100+ USD, street hawker food is already at least 10 ringgit(cheapest). Taxi fares start at 9 ringgit... etc.
Even housing there is expesnive. but the people there have high wages. But the MTR there is top class. no confusing fare changing, train track confusion like here. just press the place and get the fare. and the announcment on the trian is very clear not like here... cannot hear one.
Remember to get a 25 HKD all day pass for MTR. basically with MTR you can go everywhere... not like here