As a business user I would like to create product collections, whereby I could setup a "shopping list" template for the customer to add multiple products and multiple quantities with one click. I expect collection to be broken down in the basket.
As a business user I would like to create product bundle, whereby I could setup a bundle (items + specific quantity) of products which would have its own special price when added to cart. The difference between a collection is that in cart this will be a single product with own special price. The price always comes from the bundle SKU code as it is special for bundle, the stock state is a collective from the items+quantities contained within bundle.