Do the combi and/or yankee agitanks, for the several formats of sheet film, worth paying such prices as 92 euros or more for them? I see a lot of demand or pursuit for this kind of tanks and prices on ebays normally go above 70 euros. I know that both tanks are not manufactured any more,but even so, are they so good? I trying to get one to see if processing 4x5 with one is better thant with MOD54 and in europe is not very common to see one on ebay. Last week I spoted one combi and two yankee, all went for above 75 euros in price.