I went with no, mainly for the reasons already mentioned. CP and RT are valuable resources and the return from using them in PvP is hard to justify. It rarely seems to be similar ranked guys attacking each other, one side always tends to be significantly more advanced in level and PoIs, making things very one sided. I know I know, welcome to the real world, but this isn't the real world now is it.
That said, I've manly enjoyed the PvP action I've been involved with. My alliance has never fired the first shot, but I always seemed to be higher level than the attacking alliance, so I had fun beating the crap out of them and watching them take 12 attacks to kill me afterwards. Was hard for them to kill too many of my buddies after they spent so much killing me.