I'm a subber, I have not spend a dime on buying extra packs.
I have yet to make a single credit of anything I find in thosse : I just keep deleting them. Nothing sells ever.
Umm... you've never spent a dime buying extra packs but you somehow managed to get large numbers of valuable loot that easily sell for 10x the amounts you are claiming you can't sell them for?
"They have a cave troll."