You can tie the regular photopass card(s) to your account just like you could before. That has not changed just because you purchase the + package. You just can't get the restaurant and ride photos added to one of those cards, you have to have a + card.
The difference is - at 'Ohana - you PURCHASED the photo package, THEN they added it to your card. With +, you don't have to purchase it like that. So it's causing any of your restaurant photo packages or ride photo packages to be free. That's the price advantage.