I am not really familiar with the Etrex but considering the price I would have a hard time believe it has any type of base map or software compatibility to upload maps. I bought a mapping GPS unit two years ago and cannot believe how easy and convenient it is to use. Even if I just had to use the basemap without the uploadable finer details I think it would still prove invaluable.

Price was about twic the Etrex but I think it was worth it.