Sorry - didn't see this request until now. Here are some scenarios - I'm 100% fine with registration confirmation email going to a single email address.
#1 My family is a member of the club - we are a single membership record - no bundles currently setup. There are two adults and 4 children - 2 of those children being under the age of 3. Club has a 4th of July event. Pricing for the event is $10 per adult, $5 per child over 3, free for children 3 and under. I would want to allow for event registration at the membership record level and set up the registration form to allow for different types of registrations and different price points. In this example, I would have 2x adult registration, 2x child-paid registration and 2x child-free registration. Allows for me to know exactly how many people will be there and how much food to order/prepare and also calcs the true dollar amount due.
#2 Event is held where there is both a sports event and a dinner afterwards. Members can register for either or both - for multiple people in their household. Registration form should have type for Dinner only - total #, Tennis only - total #, and Dinner & Tennis - total #. Each type at a different price point.
And again, the big win here for both scenarios is the event registration would total up fee for each type of registration x total # entered and give me an all-encompassing bill due. I don't believe that is possible now (without re-registration for each person - which my users won't do). Ideally, if the sub-member idea from the email threads were possible (where I could have sub-names/members on my account), I'd like to be able to choose as the event owner during setup whether I wanted just total #s by type, or the allow the user to select the sub-members from a drop down or multiple choice.
Does that help? I hope so.