Four years of running a SaaS in a competitive market

This is resonating very much with me, but perhaps for a different reason. I'm launching a product within a business that is already successful. I get to give demos to potential customers, and I've been making a point of saying, "And this aspect of the product is unlimited" about many things in the product. On the one hand, related to the above, it's potentially possible that a whale user could cost us, but it's frankly unlikely. But it occurs to me that if I put a limit on certain aspects of the offering, it will likely make it seem worth more -- it's a scarce resource if we treat it as such.