When you run your own catering business, you have to purchase your own catering supplies. Luckily, this is not too difficult, since there are plenty of suppliers that sell catering supplies. You can find cheap catering supplies, if that is what you are looking for, and you might find that there are situations when buying cheaper supplies will make sense. Overall, though, you will probably find that it's worth it to buy more expensive, high-end catering supplies when you run a catering business.