Here are the differences:
The Keyword Launch (297 USD) is for Amazon sellers with currently a good Amazon PPC campaign running. In this package we help you with the launch aspect (so finding the right keyword, calculating how many giveaways you need to rank, we help you set up your discount codes and get people to buy using the codes, and follow the launch and your rank).
The PPC X plus Keyword Launch package (497) is for Amazon sellers who have a PPC campaign but is not working very well or no PPC campaign at all. For the $497 package we help you with the launch aspect (as described above) as well as helping you set up your targeted PPC (pay per click, aka Sponsored Ad) campaign by giving you step by step instructions on how to set it up effectively (there's a way doing it correctly vs just having a campaign), we help you with the targeted keywords to use, and how to maintain the campaign to optimize your ACOS. . Its our 8- figure Amazon gurus who determine the keywords for you to use, so they are sure to be profitable.
The Enterprise package is for bigger Amazon sellers who want around 100 product launches all at once.