Assuming you're depositing the ingots to Oasis...

The 100 pack is pretty solid returns and worth getting.

But the 500 compared to 100 is only giving you half a sealed and charm pack more with about a level 4 rune stone. Really seems like it should have only been 300 ingots.

The 1000 and 5000 are even worse since you're really only getting more rune stones where a cave pack would net you better.

Now if you actually get your ingots back after a week then they are all solid.