Ive been doing PuGs in Cata on all three on my toons, its fun as long as players are there to be team players and not leechers. I didnt raid every week or on every toon, yet I was fine with it. Though now from the viewpoint of wanting to see the content, Ill have seen it all in two weeks and what drive is there to keep going after facerolling over content? Should I put in the effort and jump into a normal raid and actually learn how these fights work or just turn off my brain while durping over RF and collecting loot or just quit and maybe jump back in for MOP.
I live in Hawaii and finding guilds to raid with has been quite limited, let alone one with competent team players. For me though its worth the effort I put in for the experience I get playing together cooperatively together as a team. The most rewarding experiences I have had in WoW are those fights that bring your raid team together.