For anyone who is just starting out, I'm pretty sure the fastest way to get money right now (aside from any exploits that might remain) is to build all farmer's markets and sell only Whole Turkeys, which you buy from Vlad II for $26 on the BTB and sell for $60-$80. It's boring but stupidly profitable.
it's a leftover of the shitty market equation. turkey and chicken have a huge base value, and since the marked demand comes from mostly from the good base value they are pricey and have absurd demand.
this was an issue in the cos server too, where jets where selling like hot cakes due their base value.
¤ Product Demand (cents) = K * Total_Building_size * (1 + 0.02 * Q_avg) * POWER( MAX(1, 3*
Product_Base_Value - Product_Avg_Price/10), 0.2);
relevant part in bold.
K varies by product, but here's the thing: even if one goes and say 'let's give all base ingredient low demand' - turkeys and chicken are not base ingredients. they're quite far in the production chain: it's like 4th or 5th level, depending on how you count the feed going twice into eggs and turkeys. they are madly profitable because while sitting high on the recipe complexity, they can be mass produced with relatively few factories, making them one of the most m^2 efficient top tier products to sell.
the other way I see viable to sell them is that demand should be inversely proportional to base value. but then top tier good would enter into a quality war and game would change in impredicibile ways.