I don't think groups are necessarily the be all and end all of SW - and they definitely don't work for everyone. In addition to the reasons already mentioned some people just do not enjoy the group dynamic, the personalities may not be welcoming and just because someone is a consultant does not not automatically make them a motivating leader. I've seen some very poor consultants in my time and we regularly hear of consultant who misinform their members. Lots of people lose weight very successfully without ever going to class. I think the point is that people have to do what is best for them - and it that means buying the materials off ebay then fair do. Group worked for you and, until recently, me but I wouldn't dream of suggested it's one size fits all.