According to the customs of the last 2000 years, Jews attend shul more frequently than once a year.
"According to the customs of the last 2000 years, Jews attend shul more frequently than once a year".
They sure do, and not single time do they ritually slaughter a single animal (unless you count the mounds of lox that are consumed at the Men's Club on Sundays). But the modern Yom Kippur service replaces the whole animal sacrifice thing and achieves the same atonement for sins deal, which was why I mentioned it.