I would think a lot of it would depend on if you fish an extreme amount
of differnt lake, say as in a national tournament trail - my old dinosaur
will stow 500 icons and another 250 waypoints - I've never come close to
using all that up. I don't know much about the "megs", none of mine have
background maps, or the ability to load them, but if I were you, and could,
I'd be interested to know say, how many megs memory does each lake
you want to download info on take up? To sort of quantify how much it
really takes to hold what you need. Also curious, can you "dump" a map
then reload it later, without losing individual waypoints you had stored
for that lake?