If you’re planning to go on vacation, what will you do with your cat? While some people might actually take their cat with them, many cats don’t appreciate being taken to strange environments full of unusual smells and people (who might be the cause of the unusual smell).
The two main options are to board your cat somewhere or hire a pet sitter to stay in your home. Leaving your cats at home while someone takes care of them might be the best option provided you can find someone who can take care of your cat. Failing that, you might need to take your cat to pet hotel. While this will keep your cat safe, it might stress out your cat when it goes to a strange place that it’s never seen before.
Ideally the best option is for you to stay home and spend your money giving your cat a vacation.