This is something that plagued my purchasing decisions for several years. I would often fall victim to buying games I could do without, because I didn't know anything about them and just thought they looked cool when I found them. The truth is, not every game that looks or sounds good, is good, or is worth your dollar. This happens a lot less often to me now, because I've spent a lot of time researching games across many consoles, just out of curiosity of what's out there. There are still a few systems I I'm not too familiar with. Yesterday, I made another lame purchase based on not knowing what the heck I was looking at. I did a trade with a guy for Wario's Woods. I assumed it was a platformer, but no, it's a freaking Bust-A-Move clone. If I knew that, I never would have got the game. I only know the SNES essentials, so I wrongly assumed first party on SNES meant quality, I never would have dreamed it was a cash-in clone title with a Nintendo IP on the cover.
I guess I need to set aside another day to research every SNES game out there. Knowing absolutely everything is essential to not screwing yourself when you go game hunting. It's too bad you can't judge a book by it's cover. It seems like that's something you can do with NES games generally without having to look them up, but SNES it's a bad idea. Many SNES covers and titles are weird and misleading.