I Thinkt there ist something much worse than not finding things in the Trade center:
A not workind Trade center.
Mine does not sale things. The Items I try to sell there do not sell even after 3 days and no matter what it is and how cheap I make it.
So I have no other way of making money than upgrading the houses.
This leads to a fast rising in the levels. Anyway: this should be much slower. Because with every new level you have to build more stuff.
And the commercial Buildings like police, fire, scool, water etc. are too expensive.
I have been in level 16 and would need 190.000 coins to fulfill everything. But within one Level I can only earn about 20.000 coins.
And with every new rise in the level I need more money and I earn less because sims move out because I cannnot fulfil my dutys.
I was at happyness 55% when I quit....
I have deinstalled it now because it is only frustrating. he buildings cost too much, The possibility of earning money is bad because the Trade center does not work, the waiting- times until stuff is ready is too long, you cannot play it longer than 10 Minutes, after that all Productions have been filled and I leave the game.
I think its ok to buy some cash, I normally spent like 5-20 Euro for a good game, but I will not spent a single cent for this.
I have been playing HayDay vor now 5 month and I still like it. The relation between money and duty is perfect and the trade center works perfect and extremly fast. There is no way of filtering but it does not matter. It would be too easy if you findthings too fast.
But in your trade center it just takes too long until you get to another city and mostly there is nothing to sell.