I plan to use the unit for geocaching, as well as navigation. I'm also a geography major so the additional mapping features will come in handy I'm sure. From my perspective I wont be using the camera at all so no need to pay extra for that feature. As for the topographic map I'd rather have 24k vs 100k for more precise detail, even if that details covers a select region.
With that in mind the 600 looks to be the best buy considering I'm not missing anything. And after crunching the numbers; the camera on the 650 comes out to costing about +$40 so might not be that bad of a deal, just for the novelty of it.
The 650T --- $589.85 + $74 (city navigator) + $89 (24K topographic)= $752 (with additional 100k topo)
The 650 --- $499.95 + $74 (city navigator) + $89 (24K topographic) = $662
The 600 --- $459.95 + $74 (city navigator) + $89 (24K topographic) = $622
This post has been edited by Yeah_meoW: 25 April 2012 - 12:41 PM