i made a comparison between the 2 models which resulted in this
the price is about the same (also in local shops in my town or nearby)
advantages of the etrex :
- the etrex can run for 20 hours / the geko only for 12
- the etrex uses AA batteries / the geko uses AAA which are more difficult to obtain
- the etrex has 4 shades of grey while the geko has only black and white
advantages of the geko
- the geko stores 125 waypoints per route / the etrex only 50
- the geko is slightly smaller and half the weight of the etrex
i dont know about the importance of the other differences
i especially like the longer lifetime on the etrex ... but i dont want to give up 60% of my waypoints .. i think