I have the PN-40, bought it when it was first released, came with maps of the entire US etc...
I like it, and customer service has been great so far.
That being said if/when I need a new gps I'm going to do my research, compare, play with them as much as possible and see which I prefer.
I think they offer touch screen gps' now with much bigger screens than my pn-40, also checkout fittings/connections, I'm not crazy about how my pn-40 dc car charger connects, I finally got it fixed/working, bad power cord.
See if maps are include or extra...same with sd cards etc...mine came with a 1gb, ended up buying/needing a 16gb.