I am also considering the 800. The problem I have is not knowing the real pros and cons --the kind of knowledge you only get from using one for a week+ on a long trip. I wish I could find a store that would let me keep one for a month of experimentation. Also I'm not a fan of rechargeable batteries. I like my current GPSMap60Cx with my only complaint being non-support of trails in the city navigator map package. Maybe the 800 has the same issue. Otherwise the routing and useability features have been fantastic on the GPSMap60. The AA batteries last 15 hours and I carry spares. I hate discovering I've failed to recharge sufficiently and now the GPS is dead. Maybe a solar charger..?

Every summer on an annual WI trip I take gps files generated from a Delorme package (from the person who plans the new route each year) and read them into my Garmin maps and upload them into my GPSMap60. Works well, but I'm curious if the 800 may give me cool new features without have serious other negatives.