Yes, a thousand times yes.

I had a nice little group of RL friends who raided. They stopped in Cataclysm. We weren't the best group, and there was a lot of carrying. But I enjoyed playing with my friends. I waited for friends to come back and raid with me. I was very unhappy, ready to quit.

2 months ago, joined a good progression guild. I'm happy, love my guild and have made new friends. I still miss my bf and a couple of my other close friends, and I hope I can sweet-talk them into my new group when they play again. But WoW is fun again. And I love progressing at a good speed, I love having great gear, and I'm really glad I changed over. I wish I had done it months ago.

And although LFR is a great thing for many situations, I would not have found it satisfying if that was my only raiding option either. If you enjoy challenge and working as a team, LFR does not provide. Playing with friends makes it more tolerable, but it still isn't nearly as fun to me as full-scale raiding. Maybe that seems selfish and snobby, but it's just my personal taste. I don't belittle anyone for it, and I don't mind it on my alts. But it's not fun on a character you've worked hard on and know well. I suspect the OP felt the same way.