I dreamed a few years ago of visiting lots of new galaxies in Super Mario Galaxy.
Haven't had a dream I remember recently, but when I do remember, I can remember dreams for 1 week.
Every Mario game for the Wii, 3DS (including the 25th Anniversary game)
Almost all for the DS
Super Mario 64
All Mario RPG's
2 Mario Parties
3 WarioWare Games
All for the GameCube (except for the Mario Parties and WarioWare)
A lot of Mario games I got through Virtual Console
Probably over $500...
Without shipping, you could probably get a pouch or some accessories for your 3DS.
There's also a Mario stand that holds your 3DS that you can buy at ToysRUs! :)
http://www.toysrus.com/product/index.jsp?productId=11726617
If it wasn't for Funky Kong and Daisy spammers on Mario Kart Wii, that would be my favorite (I still enjoy going online though). Mine is Mario Kart DS.