Here is a good checklist to develop a starting point.
Price
Size
Brand
Ease of use
Subject matter
Price is always the first thing I ask, it gives a great starting point on where they should look. I do encourage everyone to spend just a little more than they budgeted for. Cut your vacation budget somewhere else and opt for a higher quality camera. That expensive dinner will be with you for only so long. The photos you take will last a lifetime. Of course you can always take a photo of your dinner with a camera.
Size of the camera and accessories is the next question. Do you want something that will fit in your pocket or purse or are you willing to carry a full camera bag/backpack? It also brings up another thing to consider, is the place you are going; what is the danger of theft. You don’t want to make yourself a target, as some areas see you as someone with money if you have a big expensive camera. Plus the camera itself is a target.
Brand of the cameras you are familiar with or may currently own is another question. If you already own brand X and it is highly rated, I suggest you stay with it. The reason being is you may already own accessories that will work with your current brand. Also many of the settings, button, knobs and so forth may be similar making it easier for you to use and understand.
Ease of use is important to know in case you have a good understanding of camera functions and settings or you are one of those who leave it on “Auto” all the time. Leaving it on Auto is perfectly fine; I think a majority of people do. If you are an “auto” person and I am sure not going to have you spend the extra money for a camera that has all the bells and whistles.
Knowing Subject matter is important to know what features you will need. Are you planning on taking a lot of indoor photos with low light and no flash is allowed or a bunch of landscapes. Are you the type that takes only scenery photos or do you put your friends and family in the photo too?
Warning: Do your research on where you are visiting and if they allow photos at certain venues. Don’t spend tons on a camera/lens that can take good low light photos just to find out they do not allow cameras in the building.
Coming soon: Vacation Time: What camera should you buy? Part II
Want to improve your photography, sign up for photography lessons
Want to improve your photography, sign up for photography lessons