There are certain sabbats on the calendar that are just bigger than the rest. Obviously Samhain is one of those. For many Pagans it’s the annual “reset” button, and its associations with death and the final harvest give it an extra degree of gravitas that most sabbats just don’t have. Add in its overlap with the secular Halloween and you’ve got the makings of very big holiday. The other “big” sabbat is generally Beltane for a variety of reasons. In colder climes it’s a “coming out” party, plus there are all the goings on about new life, the first planting, and of course sex. Sex is always a big seller.