They are great if you want to look like some kind of fucking retarded religious cult learder, or like you have less fashion sense than example 1. And example 2.
Snuggie wearer: Hey man check out my sweet snuggie!!
Normal person: Yeah thats about as cool as aids.
Snuggie wearer: But I am warm and thats all that matters right?
Normal person: No!! And you look like a shit eating cum bucket!
If this conversation arises with any one you know you should probably kill them!