thats a hard one,
I guess it depends on what you want more. I'm sure with the cost of the manhattan you can get more then the speedy/pochette and cles. So it doesnt on how much you want wanna spend.
I personally say go for the best bang for your $$.
ouis Vuitton Multicolore White Pochette
Louis Vuitton Bolt Keychain/Pochette Ext.
Louis Vuitton Monogram Speedy 30