Maybe it was an impulsive decision right at the moment. Or maybe you went to the Internet after seeing it, just to learn a little more about that intriguing title before you finally bought it. The main point is that you knew absolutely nothing about the game or the series (not even a mention of it in forums or Youtube) before seeing on display (or in your screen, if it was an online store or downloadable game).
Once I needed a Nintendo Wii Pro Controller to play a Virtual Console game on my Wii. While walking in the store, I found a black controller bundled with Monster Hunter Tri. I have to admit that I was more interested in getting the controller than the game (which, as the poll points out, I knew nothing about). So I checked some scores and reviews at home about it. The scores were a little low for my taste, but the reviews pointed out something that caught my attention: the difficulty curve. With that I made my decision and bought the game the next day. I ended up killing far more time (like "mass murder" rate of killing) in Monster Hunter than with the game I bought the controller for.
Once I needed a Nintendo Wii Pro Controller to play a Virtual Console game on my Wii. While walking in the store, I found a black controller bundled with Monster Hunter Tri. I have to admit that I was more interested in getting the controller than the game (which, as the poll points out, I knew nothing about). So I checked some scores and reviews at home about it. The scores were a little low for my taste, but the reviews pointed out something that caught my attention: the difficulty curve. With that I made my decision and bought the game the next day. I ended up killing far more time (like "mass murder" rate of killing) in Monster Hunter than with the game I bought the controller for.