With this sort of mentality you should never go to Las Vegas.If you look at it from a business standpoint, you could make an awesome commercial for $5-10k and have a good chance at winning 25k...
Let's look your 'business standpoint' from another direction:
The state fair is holding a raffle that includes a $25,000 automobile as the grand prize. They are limiting the ticket sales to one hundred tickets at a cost of $5000 per ticket. Are you really going to buy a $5000 raffle ticket for a 100:1 chance to win a $25,000 automobile?
Again, don't ever go to Vegas. No doubt they would love to have you.