1. people who don't want to think about it - they pay for everything to be taken care of properly
2. people who want to be wined and dined - they end up paying to be taken out to dinner a few times a year and hear about what the firm is doing to survive bear markets and how they're taking advantage of bull markets
3. people who think they're smarter than everyone and want to direct everything - these people are probably moving to more self serve options, but plenty still want to tell a human what trades to make
Also at a certain net worth, tax and estate planning is a huge part of the work.