Jahs drop at a rate slightly higher than Ber runes because while they were originally more rare, the weighted buffs to rune droprates were scaled out of proportion with the actual droprates at higher tiers. Though Jahs are still less directly accessible than Ber via cubing Sur runes, and its generally not economical to cube anything less than Sur
Killing Ismail in hell P1P1, you have;
1:74943 Jah Rune
1:83693 Ber Rune
1:55795 Sur Rune
If you count each Sur as 1/2 of a Ber, you have effectively 1:47824 for a Ber, 1:74943 for a Jah
These ratios carry over to most monsters who can drop them all
Thus while the demand for Jah and Ber runes is pretty similar, the supply is about 2:3 rather than 1:2, so the prices don't remain 1:2 indefinitely in a ladder
Also once demand for enigmas isn't the main economic driver, you see a surplus of Bers being turned into way more runewords than a surplus of Jahs. CoH/Infinity for mercs on all kinds of builds, while the use of Jah/Ber in Phoenix, Beast, Faith & Dream are all mostly for one-off builds that make up a tiny fraction of characters each. Though more phoenix demand for echo warlocks.
Nice ty well researched and explained
Warlocks need enigma, don't need infinity.
Nova sorcs need infinity, don't need enigma.
Everybody and their grandma started as a warlock. Maybe it's time for another char now.
True logic is sound makes sense