I am making some changes to the way my products are priced and I need to be able to do the following

1.) Have an attribute for a given product whose price is not impacted by the quantity of the product being purchased.

2.) I need this attribute to be set on an individual basis (i.e. it is not constant for each product)

Is this possible without creating a different attribute for each product (not feasible given the number of products I have).

Thanks

Gary