Frankly I'd consider any profession skill the same. If you use the skill profession (gambler), And you use the skill checks to generate income, it simulates you going to the local gambling ring/establishment and gambling, your skill will allow you to at least break even, and your roll simulates how successful you are.
So what benefit would you get from using tools like marked cards or loaded dice, skills like Sleight of Hand or Disable Device, or spells like Mage Hand? The rules say nothing about these things.
If you want simulate cheating of any kind, I'd advice just using individual games. As rules about cheating for that exist and simply assume that if you cheat while generating cash with the profession skill, no cheating will be either possible or profitable (much like a normal casino, even if they cannot prove you've cheated, if its likely, you'll be asked to leave anyway).
So what benefit you get from things like marked cards and loaded dice in a one-off game? The rules are vague on this issue.