Chucky, is that kind of like deciding to watch someone eat on the TV, when you are hungry?
Actually I sometimes do that too. If there's a game I'm interested in but not 100% convinced, then if it's the type of game that can't be spoiled I'll watch a "Let's Play" type video.
The strange thing is, I can enjoy a let's play video of one game but not feel any desire to play it, and yet watch another one and simply HAVE to play it
Examples: Factorio. I enjoyed videos of that game without any desire to play it myself.
Crusader Kings 2 & Planetary Annihilation: wildly different games, fun to watch (CK2 is very dry to watch though unless the narrator is good) and both fun to play.
(Actually, CK2 is the game I want to play after watching Game Of Thrones
political & dynastic intrigue without the magic.)