I go to meetings, and I would highly recommend them!
(You can see people's opinions differ on this matter.) Yes, it can be expensive, but you get all of the new plan information as it becomes available and if you use the monthly pass (the cheapest way to do meetings, works out to about $10 each), you get access to all off WW's online program support tools. The meetings are an integral part of the process for me. Going there each week revs me up for the week to come. Hearing other people in person talk about their struggles and successes is highly motivating. Sure, 3FC is a great place to come for support, but there is something about having that in-person element which makes a big difference.
Success can be had either way, which is why WW created the WW@Home program. Personally I've had much more success *sticking to it* by going to meetings, when I was doing it alone I fell off and never got back on!