Why spend tens of thousands of dollars on a Salesforce marketing automation tool when Lookup Helper, in addition to a few other applications (like Rollup Helper and MailChimp), can do the same thing for a quarter of the price?

With Lookup Helper, you will be able to directly link your Leads/Contacts to a Campaign. You may then use Rollup Helper to aggregate valuable information to the Campaign record, and MailChimp to send Campaign specific emails to those Leads/Contacts.