Are new sealed nintendo gamecubes really going for $400 plus dollars?

Are new sealed nintendo gamecubes really going for $400 plus dollars?

I just found a new Indigo gamecube at a local thrift shop, i pulled out my phone checked out amaozn and ebay and they are going for $400 plus.

My gamecube isnt sealed, it is open but the console and accessories are still wrapped up in plastic.

so im just wondering if that is true because i only paid $110 for mine.