I've got a new Lowe Stinger 175c on order that will be here in July (supposedly, hopefully sooner). It will come with a 70lb 24V Edge installed. I will want to upgrade to a trolling motor with spotlock. I have Garmin Echomaps that I will be putting on the new boat. Is the Garmin Force worth nearly twice the price of a Terrova? The Force is $3,099, the 80lb Terrova is $1,849. I know the Force is brushless and will have way better battery life and will integrate with the Echomaps and will go to waypoints, but is that a huge difference in usability over the Terrova? Are there any other features I am overlooking on the Force?