I'm interested but definitely not paying more than $100 or so for it. $900 is insanity. For $900 I expect top of the line. What you are selling is nowhere near that.
First of all, if you're willing to pay no more than $100 for casino script, then you're not interested.
Second, you can expect whatever you like, good sir, but top of the line casino scripts start at 10 times my price.