Hey 'Dr.' , Mr 'R' et al.....
At $11 or so for a WAC vs a 'Coupla' grand for a decent GPS......that's a HEAP of WAC's....
map, ruler, eyeball mk1....compass etc....
I may 'sometimes' be tempo 'unsure' of my exact posn....but whilst there's fuel in dem tanks - I'm never 'lost'!!
Mind you, a GPS at night is LUVLY!!