Some people obviously care, but beyond that, I think it's an easy low hanging fruit when building them. There's lots of API's for it, the data is extremely regu

Some people obviously care, but beyond that, I think it's an easy low hanging fruit when building them. There's lots of API's for it, the data is extremely regular, you get to show a graph and colorize some +/- and it has enough "bits" (symbol, name, price, delta) to look showy and interesting without being too complicated to actually design - the symbols even basically fixed width at 3-5ch.