Go to YouTube and search for the title of the game followed by gameplay. Example: "cold steel gameplay". Now go to page 3 of the search results to make sure you're NOT getting advertising or ecelebs. You're looking for that random guy who is just recording the game. And doesn't talk. Very important detail. You want that video with sub 100k views. And now you can see for yourself exactly what you will get and can make an informed purchase.
But I suppose its just one of those things people want to do that has nothing to do with practicality.