worth

I have a soccer field from the 2021 soccer cup event and it seems to be basically worthless. I log in only a few times a day, so the short production options (supplies, medals) are basically worthless, and the long productions (fp, goods) are a very small quantity. It's also still in iron age...

Are these buildings just junk? They provide slightly more coin than the 24 hour housing of their age and pretty much no population (just 1). Are there any arguments that favor keeping these buildings? Considering that these are usually obtained as prizes, I feel even worse about holding one...