No real halachic reason. I just don’t get my Oneg Shabbos or Oneg Yom tov from listening to someone drey a kup and pretend to be Pavarotti. Rosh Hashanah and Yom kippur are different, as those are days in which you are supposed to spend as much of the day as possible in shul. But for Shabbos and Yom tov, give me a Litvish Yeshivish minyan any day.
There’s an old joke where a little boy goes to synagogue and sees a prominently displayed plaque covered with names and depictions of flags, military vehicles, etc. The cantor looks down at the boy and says, “These are the names of those who died in the service”. The boy looks up fearfully at the cantor and says, “Shacharis or mussaf?”