IMC is one thing, but GPS is greatly useful to pilots under VFR as well. I'm working on my PPL(A) right now and all the instructors I've flown with advocate using GPS for general navigation.
Of course I'm also learning to use the old nav aids as is required for the PPL, I can find my way using VOR, ADF or map-and-stopwatch no problem, but quite frankly, I consider those to be (cumbersome) backups for when the GPS fails, just as the turn indicator can be used as a substitute gyro horizon in a pinch.
GPS is here to stay. Possibly supplemented by other satnav systems to provide redundancy, but I for one won't be shedding tears when they turn the last power-hogging NDB off.