Skip, The idea Leboff is getting at is that sometimes the customer doesn't know they have a problem. This is where the questions both of you endorse come in. He clearly disdains a blanket presentation style of sales interview. He argues against the transactional model of selling. That is key, for in his method, you put the customer relationship first. This means you might end up saying, "Sorry, we aren't a good fit for you."
It is also really helpful to remember that this book is written for the small business owner. It is not written for the corporate salesman who turns over the relationship with the customer when the sale is made. It is for the small business owner who has to live with and care for the customer for the rest of the business relationship.
"Leboff's premise, that selling benefits is a myth, is hogwash."
You have to understand that Leboff sees people's motivations, most of the time, as not gaining benefits, but avoiding loss. He claims 'benefit selling' is integral to the transactional model, not the relationship model.
Benefits are saying, 'here is why we are great'. They speak more to the company selling it than to the customer and his needs and problems.
But importantly, whether people are buying to avoid loss or gain reward, they always buy to solve problems.
Do you go to a restaurant because it is billed as having good food? Perhaps, but really you go there because you want to show a loved one that you really care.
You really should read his book. Even while disagreeing with him you might pickup new thoughts...