> If I were the customers and I found out that I was used as test subject, how would I feel? In reality, every business has relationships that it values more t

> If I were the customers and I found out that I was used as test subject, how would I feel? In reality, every business has relationships that it values more than others. If I wasn't paying a lot for it, and if I was running something that wasn't critical (like my side project) then why not? You can price according to what level of service you want to provide.