The problem with grouping in EQ was that there was a hard code built into the game where you pretty much needed a cleric, a warrior, and a chanter. The other spots in the group could be a mix of bards, rogues, and a few others, but there were so many classes that were just not group friendly, it made the whole system a huge pain in the ass. I know from experience, cause as a wizard, I was almost totally useless until SOV came out. Yeah, they gave wizards and druids evac, but we were still pretty useless when compared to other classes in a group setting (AoE groups were fun for those that knew how to run them). I think the solution is not group lobbies (I'm totally against them because once again, you're not really interacting with the community) but to try and make every class useful in a group setting.