JooCart has multi-store abilities which allow you to manage multiple stores from one admin interface. There are many advantages in being able to set up multiple stores:
Theme each store differently to match the products that are being sold.
Set products to a appear on specific stores.
Localise each store by setting a different default language, currency and tax class.
You can set different prices for each store you have setup.
Setup a default customer group for each store allowing you to have some stores setup for retail customers and others as wholesale.