Hello all!
Just interesting your opinion about price maras - my price are based on bnet prices, so

mara30 = jah or ber (most time I see that games, where people offer ber or jah for mara30) ~ 11-13 ists
mara27-29 ~ 4-7 ist
mara22-26 ~ 2-4 ist
mara20-21 ~ ist-ist+mal