He says in upsell tell them you just bought something great, you can upgrade now. Just like Mcdonalds.
The problem is in Mcdonalds you add Coke or chips to a burger. You buy the big one first, then add small one to it. You don't buy a coke first then add burger to it.
But upgrading from a $7 to $67 is not exactly the same. It's actually opposite.