There is the "Chestnut Festival" in Roccastrada, in the province of Grosseto, the "Thrush Feast" in Montalcino, close to Siena, the "Waffle Festival" in Vaglia, in the neighbourhood of Florence, and the "Festival of White Truffle and Mushrooms" in San Miniato, in the province of Pisa.
from the economic point of view - in this period of the year prices are often reduced with many unmissable offers;
from the point of view of the tourist flux - with less tourists visiting museums and monuments, you will not have to queue too much;
from the landscape point of view... - just image a Tuscan estate immersed in the red and yellow hues of the countryside in autumn.