Design your Collection

I have a few items listed below. 
Which (select as many as you wish) items are a MUST to create your ideal event photography collection?

Leather Album, 
Disc of digital negatives, 
6, 8 or 10 hours of coverage, 
Prepared images on a disc,
Save the date cards, 
Engagement session, 
Hardcover photo book, 
Online shopping cart,
Printing rights, 
Thank you cards, 
Mileage included,
Online gallery to share with friends and family,
Prints,
Canvas,
other: please explain

And, can you guess what the average cost is for a wedding collection these days?