the more variety, the more interesting the game becomes. Some people might not like this, while others might find it appealing. There's no accounting for taste. In Soda, you can trade not with gold, but with heroes. For example, you can buy a 4th hero (with one unit), take him out of the castle, and immediately dismiss him without taking anything. Here, the exchange rate is strictly 2500 gold. And for less, you can trade troops – for example, if you're playing as a Barbarian, on the first day, you can buy and dismiss 5 goblins. Although, in my opinion, these trades really came from poker.