You're correct - I did mean the number of potential customers rather than the total amount of money. I haven't heard that distinction, but I'll consider using

You're correct - I did mean the number of potential customers rather than the total amount of money. I haven't heard that distinction, but I'll consider using your suggested alternatives in the future. At the same time, I wonder if using a longer phrase like the "number of potential customers" would actually make the article less readable. I imagine most people knew what I meant by the term "market size" based on the context.