If you fish lakes that you aren't that familiar with , then they can be handy as you dont have to feel lost.But on home lake I have seen gps units go unused for several trips in a row.If you like to log big catches or hot areas it is handy for sure , but I haven't ever had trouble remembering the good spots I fish.Also good for marking other peoples brush piles.I can attest to this as many folks have casually punched in my piles while riding by.(he'll never notice what I'm doing...:rolleyes: )I will say it was nice on Rango's boat during a storm one night to follow the red line on the screen when visibility was crap , but I rue the day for any stranded boaters who may have been in our path that night .I dont own one personally , so maybe my opinion aint for nothing , but a lot of the guys I fish with have 'em so I have gotten to tinker with them.In the big blue water they are a must (for me anyway)when the land disappears , that red line is a BIG comfort zone.