What country are you getting it shipped to?
Be careful of the price point. Cheap ones may be lacking in an IR filter, which could be hazardous.
What do you intend to use the laser for? You should only get what you need, nothing more. Otherwise, it's like using a stick of dynamite instead of a firecracker: there really is something as too much. I worked with lasers in college, so I know a good deal about hazards and safety.