There are also less frequent drops with RS gold low overall value and more of them having 1-10 million values like Fury Ornament Kit, Saradomin Ornament Kit, Ranger Chaps, Ranger Gloves, Sagacious Spectacles, Fremennik Kilt, Black Tuxedo Jacket, White Tuxedo Jacket or Dark Trousers.
Then, last but not least our best chance to win a Reward Casket which you can find from a Clue Scroll. In this one, even from the regular drop table the players can receive a variety of very expensive items. Since the calves of this tier have around 1 million in rewards value It is likely that you will see things that go over the 100k gold very frequently.
The variety of affordable cheap OSRS GP equipment is less wide, that's why generally, it is possible to earn a huge revenue from Master Caskets. You can also expect unique and extremely rare drops the same way as in the past.