my opinion is that if u constrict your musical abilities to just power cords the world would be a very mono-tone lifeless place with no feel
hey man...umm, powerchords...well that just depends on the style of music u wanna play. If u have an electric guitar and want to play eg punk then the power chords are practically enough for most songs...In my opinion that could be very limited...i never play powerchords myself...even when required as it's better making sure u grab the whole chord, eg (G5 will sound like g if u accidentally play the 3., 2....string!) (G5 chord range is 6th, 5th, 4th string)... but thats just my humble opinion...have fun and never ever give up!!! peace an luv