Select Tier
The Select tier is perfect for design, delivery, forms and reports. If you're coming from another emarketing platform like Swiftpage emarketing (SPEM) or Act! emarketing (AEM), and want to continue the same type of emailing with better design & delivery tools, the "Select" tier is an easy choice.
Select is perfect for those designing business newsletters, and sending up to 25,000 emails per month with normal delivery or with some drip functionality after the template is sent. What this means is with Select you can schedule a number of templates to be sent in a drip, but you cannot implement decisions that change what is received based on how the audience engages with the emails. Decision Trees based on clicks and opens are not available with Select, nor is feedback like AMA scoring.
Select users can also build simple landing pages to capture basic contact data with web forms, but these new contacts cannot be added to groups or campaigns, or trigger follow-ups of any kind.
So the simplest way to understand the difference between Select and Complete is the former supports "outbound delivery workflow", and the latter support that AND "inbound response-driven" workflow. If you review the comparison chart, you'll notice that most of the differences between the first and second tiers follow this theme.
It should be noted that Complete also has another 40,000 sends per month (total of 50,000), and more robust Webforms & landing pages that support many more types of data fields, like checkboxes for example, that allow users to present a more meaningful survey to their audience than Select supports.The case for Advanced is even simpler. Those that need advanced features like a/b testing or multi-stage lead profiling already know what they are, and understand their benefits. These are sophisticated marketing tools, and if a user is qualified to use them, they likely know their value well enough to justify the extra cost. The only other reason a user would justify the extra cost of the Advanced tier is based on the increased send limit, namely the extra 50k included with the top tier of AMA for a total monthly send of 100,000 emails. In these cases, the math will speak for itself.