Agreed. I think it depends on the type of fishing you do. I primarily crappie fish and follow channels, contours, etc. spider rigging, pushing and pulling cranks/jigs. If you get the link you will need ethernet cables and an ethernet hub to network your units with the TM. I have 2 humminbird units that network and just bought a Riptide Terrova 80/60 with ipilot link. Don't know where you looking to buy, but I got mine at Northern Marine Electronics (learned about them on this site). I bought a factory remanufactured unit with a factory warranty and saved a little over $700. That more than covered the cost to upgrade from ipilot to ipilot link and the cost of the ethernet hub and cables. Recommend at least checking out the prices before purchase. Window shopping online doesn't cost a dime. Hope you find what you are looking for.