Traditional eCommerce Small (small catalog, no custom programming, off-the-shelf theme, light traffic): $3,000 - $5,000
Mid (medium sized catalog, light custom programming, customized theme, medium traffic): $3500 - $6500
Large (large catalog, heavy custom programming, customized theme, heavy traffic): $10,000 - $25,000+
Custom Development; $15,000 - $27,000+