You don't really have to enter your payment information every time you create a website. Once you signup, you can make a deposit for $3 and we'll charge you only when you create a folder in your dropbox (that too 1 hour after you create the folder in case it was done by a mistake). Also, even if you don't have any funds in your account your websites will be live, we'll send you an email to clear your invoices :) In short, all you have to do to create a website is create a folder with an index.html file. I am also the creator of http://getsimpleform.com which is a service which allows simple contact forms with akismet integration for spam prevention, it also allows you to use templates for the email notifications on form submissions. websrvr will have all that functionality and a bit more :)

Thanks for the feedback, I'll change the copy hosting it off of S3 or Cloudfront definitely adds to the cost that's why there is a price difference. I should make the text more understandable.

Thanks for the feedback. Do you use github pages? or a server of your own? In the near future I am planning to allow users to host their sites on Amazon S3 and Cloudfront, that should remove the fear of reliability and also be a good feature. I understand that it may not be very appealing to people who can setup their own servers, but I foresee it being useful to many designers.

I don't foresee a lot of issues once a user gets the hang of it, and I am expecting each user to have approximately 10 websites which should eventually pay off. Hopefully it works out :) I will also increase the amount of documentation/videos which should reduce the support required.