There is a huge difference..guns and cars are useful and not intended to be use to fog brains...
Usefulness is subjective. If you give the government the power to remove anything without a "use" then don't come whining when they decide that YOUR particular item or hobby has no use.
BELIEVE me there are tons of people in our society that believe that guns have no use (and a much smaller segment believes that cars are well overused - you wouldn't believe the number of cyclists that basically consider personaly owned automobiles a bane on society).
Heck even I'd be willing to admit that aside from a pleasuring the taste buds (which is no better than a drug high) the only use that fried food serves is to clog one's arteries. Shall we ban that too?
In the end its better to let each individual determine the usefulness of an item as it pertains to themselves, rather than letting a nanny state dictate the list of what's ok and what's not.
