Tmex:
I agree, indeed it is not as robust a design ... not waterproof, and probably also less resistant to vibration.
On the other hand, the Nuvi 205 is going for $130 on Amazon and a lot of my riding is not the hard-core off-road stuff so... I'm wondering .... esp. when you count the $70/year to update the maps?
Undecided but thinking of "cheaping out"