Although it was possible for the Green Snake clan to purchase some perfect grade medicinal pills, it didn't pose much of a threat to the Redwood clan, which had all of its funds.
At that time, the Green Snake clan would only be able to purchase some perfect grade medicinal pills. They wouldn't be able to purchase all of the perfect medicinal pills, which was the same for the Green Snake clan.
The two great pill refining clans would naturally purchase medicinal pills differently from the other clans.
The other clans would only purchase medicinal pills that were useful to them. For example, they would purchase medicinal pills that could heal their injuries, or they would purchase medicinal pills that could strengthen their cultivation bases.
There were also medicinal pills that could cure their hidden illnesses, and there were also medicinal pills that could strengthen their source beast talents.
And so on. They were all different.