Designing to your business model

Recently I walked into a bank because I needed change for a 10-Euro bill. The bank refused to do that, because I didn't have an account with them, then asked me whether I'd be interested in opening an account. I told them that their refusal of service to not-yet-customers made me less likely to open an account with them. I was thinking of that episode when in yesterday's thread the question popped up how companies designed Free2Play games to cater to the small percentage of people paying for th

World of Warkraft...