I also bought a GPS III Pilot, but traded to a used 195 because I wanted
a bigger screen. I like the bigger screen, but the page updates are
incredibly slow---the unit seems to go to sleep for up to 5 or 6 seconds
at a time going from one area to another. I have the latest software.

I played with a 196 once and it is a huge difference, the screen updates
were like lightning by comparison. The 195 drives me nuts but I haven't
been able to justify upgrading (see prior whiny thread about going to a
Lowrance 500 or tablet PC or whatnot)---at this point I'm saving for a
panel mount instead.