Yup. I got one player who is near 100,000, but I think he might have taken advantage of old glitches. There's always a few bugs to swat. I just hope I get all the ones that lead to making easy money. I think your first goal should be badges so you can get access to more areas, which in turn contain more treasures. Treasure chests also respawn after a week or so (varies based on type of treasure chest), so return to spots you've been before and cash in. However, the real trick to making tons of money is selling items, not necessarily finding it in treasure boxes.