I think my generalisation is quite warranted. My sample size ran to about 30 people, who were not selected by me in any way. If you are selling a product that

I think my generalisation is quite warranted. My sample size ran to about 30 people, who were not selected by me in any way. If you are selling a product that is a one-time fee and you are happy with the model, then fine, let's agree to disagree. If you are building something and want to make subscriptions or have some interest in my statement being wrong, then you are approaching business with the wrong attitude. In the absence of any information to the contrary, I like to work with the little info I have.