Not really, especially with dual specs in WoW. I solo as a healer, it is doable and is nice to have that endurance as well - even if talents have changed in WoW. I've never been social in guilds - I heal as I like being support, I do my job and that's about it. In pug groups, I am valuable commodity, so if a group of disposable DPS irk me I can just ditch them and find a new group soon.