Thanks for starting this discussion, Melissa.
I feel the same as you. I can understand having packages for special projects, but how about a job as a virtual PA where the client as immediate access to you all the time and constantly asks you for assistance (like being a "real" PA sitting next to him

)?
I personally feel that in that kind of situation, I would be better off charging him my hourly rates with maybe a discount after having spent xxx hours.
What is your opinion on this?
BR,
Stefanie