hard to say...depending on what kind of items you are after! Accessories....new is cheaper in Sg. 2nd hand like camera bodies sometimes can be cheaper than Sg.
Used Tripods, light meters, is much more expensive than Sg....sometimes more than the new items. :angry:
Medium Format or Antique cameras can be cheaper too....all depend on your luck :lovegrin:
Becareful of Ebay......1/2 of the items are not accurately described :dunno:
Think you get GST if buying from shop. Unless Duty Free