I always thought scraping was a fun idea, I just couldn't find the right use-case for it. I'm not a sports guy, and the big sites have pretty extensive API's. Something music related would be of interest to me, but I can already get updates on events like concerts (since the monopolies make a fortune selling tickets). I'm not sure what could be useful.
I build https://awardfares.com together with a friend which scrapes airlines' award seat availability. Airlines' websites are horrible from a UX perspective so scraping the data and presenting it in a better way was a pretty obvious use case.
A quick look shows a lot of award availability to China for some reason...