I was considering buying Shantae, but Amazon wants more than a $100 for a used copy! No game is worth that much! Is Shantae so rare that sellers are asking that much money!? Is there an online/offline store that asks for less money for a copy of Shantae?

eBay has numerous sellers charging the same, so odds are you're out of luck online.

Yes it is VERY rare. Ive been trying to track down a copy for quite a long time now. Ive been through my local flea market asking all the sellers to look at every GBC game they have and I did come up with a Oracle of Ages but still no Shantae. Nerdzy.com shows it for like 15 bucks and I bought it but never got the game and had to fight to get my money back so dont go there. Im willing to spend 50-60 on it but thats about it. I really want to play it bad though.

Yeah, the Oracle games (which are fairly rare in my experience) are almost commonplace compared to Shantae, which is damn near impossible to find.