Yes, I remember back in the 2007 range I believe it was advertised as up to a 35% off value (I may not have that exactly right, but it was advertised as savings). They only had the regular plan, it included an appetizer AND dessert as well as drink and entree AND it included gratuity. And it was like $39 per adult per day. By 2008 the appetizer and gratuity were already dropped.
I love "free" dining for my family of 6. There isn't any discount that comes close to that savings for us. We are planning a trip for August, likely off property and the food alone is going to cost a ton. Disney considers 5 of my family members adults and that adds up so quick. With
free dining we had a table service meal every day. That won't be the case when paying out of pocket over 10 days for 6 people.