BigCommerce does have a different pricing structure than other platforms, so you will notice sales caps per tier on their retail plans while Enterprise plans are custom based on the order volume and GMV.
BigCommerce is best for SMBs & MM who require a lot from their ecommerce platform with large or complex catalogs. BigCommerce includes a lot of features out of the box and like other platforms allows for the platform to be extended with third-party applications. BigCommerce also supports both B2C and B2B businesses on the same platform. BigCommerce does have a different pricing structure than other platforms, so you will notice sales caps per tier on their retail plans while Enterprise plans are custom based on the order volume and GMV.