My 2 cents from collecting AK74 mags.
Plum Molot RPK74 mags - $180 to $280 depending on condition and shade of plum.
Plum Tula mags - $60 to $90 depending on condition.
Plum Izhmash mags - $35 to $50 depending on condition and shade of plum.
Bakelite Molot RPK74 mags - $75 to $125 depending on condition and Molot symbol, blank disc, and no symbol. (Aim Surplus had some nice examples not that long ago)
Bakelite Izhmash mags - $40-60 depending on condition.
Bakelite Tula mags - $50 to $75 depending on condition.
(I'm referring to 5.45 mags)