For years in our portrait studio, we sold three different types of prints and charged three different prices. Ultimately, I decided we were confusing people and also hurting sales by asking them to make too many decisions. Now, the only thing that has a higher price is canvas prints, which has a very specific audience, which is people who know they want a classical portrait of a child and know they want it on canvas. Otherwise, no other clients see that price list.
Just because it's shot on film does not make it unique and therefore worthy of investment. What makes it unique and worthy of investment is your mind and your creativity.