Would be nice to have the possibility to extract email by number of purchase they did and target them with emails.
But we need something more advance as dashboard for cs cart.
That's what sites like Mailchimp are for. Integrate mailchimp and then use it to send marketing emails based on a lot more criteria than you'l ever get out of cs-cart.
Our mailchimp integration addon (that does NOT use the newest V3 API) will send order data to mailchimp in what Mailchimp calls "segmentation data". Their interfaces then allow you to send emails based on query info like "send to everyone who purchased any product between x and y" or "send to everyone who purchased the xyz product" or "send to everyone who purchased more than $100 in any order between x and y", etc....