It is quite expensive (US$ 50-ish). In 2023 we should have plenty of $2-5 chips capable of running a normal distro of Linux.
I have a BBB in a drawer somewhere. It's a very nice platform, but I quickly realized that for the $50, I could use a $30 RasPi B+ (back when you could get them) talking to a $2 arduino clone and accomplish the same thing far more easily.