An upright vacuum cleaner usually has attachments. While this keeps it from achieving Buddhist enlightenment

Bahahahaha :D

Roomba is better at hair (although you have to clear its brushes pretty often). The Neato is vastly better at dust.

"Better at hair" as in "better able to pick hair up at all", or as in "better able to avoid being crippled by a long hair"? I have really, really long hair and if I were to get a cute pet robot it would do well to be able to handle that, but dust is important too.