Strange that adding smaller wins to slots has only just arrived, as such more complex betting systems have been proven to make playing feel more rewarding for d

Strange that adding smaller wins to slots has only just arrived, as such more complex betting systems have been proven to make playing feel more rewarding for decades. E.g. in Finland all supermarkets and roadside cafes have slot machines, and complex betting tactics described in the article have been there at least from the 1990s. They do differ a bit from Vegas slots, as the profits go to charity and the jackpots are ~50€, but still they are carefully designed to maximise the profits on the long run.