Yes, it is acceptable. If users out there seriously don't think twice about going into the wilderness to trade stuff, then it is their own fault. They need to realize that it is dangerous out there. I personally don't lure, seeing as how I would probably get myself killed.
I was going to leave a comment, but it seems that other users have beat me to it. I agree that you should allow more than 100 tickets to be entered, that way users can know exactly how many tickets they will need to get the desired levels. Thanks!