The same idiots that don't agree with GPS probably would object to VOR's if they were introduced...do these people beleive the "old" is good? Sorry, it isn't - otherwise GA would be getting more dangerous, not safer.
Let's think, with GPS, you can still look out the window, recongise a lot more landmarks (hence, improve your recongistion skills), you're a conveience to ATC (always correct position reports), you don't bust airspace because it screams at you if you try, you don't go off course as much (hence less fuel required, less people running out of gas), it's independant from the aircraft electrical system (redundent navigation equipment), if gives you accurate GS, hence, selecting better altitudes (saving more fuel, those plonkers that say "look at the forecast", compare one with real flying). Any more benefits, heck yeah, you can point your aircraft to an alternate, get accurate GS - less in flight planning, less time, more safety.
Oh, and there's more - it's enables one to explore a greater distance with confidence. More confidence leads to better flying, less effort navigating, leaves more time looking out the window for traffic and monitoring the guages.
I can't stand the plonkers that are afraid of change and wish to remain in "the good ol days".
Err!
p.s. yes, I do look out the window before you start...