to put it bluntly, change the wholesale back or I leave Elvenar, the choice is yours.
I agree...
If they really wanted to make trader fair they would have incorporated a drop-down box where you enter the item of non-boosted goods you are looking for, they could put boosted there too for all I care, and you choose what item(s) you have you are willing to trade for and they calculate the trade and you decide if you go wholesaler or wait for a trade. This way you could trade supplies, coins, any of the 6 common manufactured goods, even diamonds, so they get that greed factor into top gear, then there are plenty of materials available for quests, tournaments, events, upgrades, etc..
To slow us down in this manner, to me, is catering to some whiney high level players, who paid their way to the top with diamonds, and are now upset others are catching up to them and they want to insure there is a buffer between those who paid to play and those who just came here to waste a few hours and see something come from it, to not to be tortured at every turn with changes that hinder the already snail paced gameplay they incorporated into this game, or teased by events that you need materials for that you can no longer trade for...
They have to realize that there are many who do not fight, who barter their way across the map, and use up way more materials than others.
But dudes in an office, with a job at generating revenue so they keep their job, and this was their grand plan, to anger the majority of their fan base, nice...
Studies show that if we do x, y will happen... you got z dudes... z..