Agree with scthornton. Also they are either part of or across the street from or owned by a la casa de habana.
Probably the only place you will find something real, don't even bother wasting your time at the place in front of cabo wabo or even some of the side streets if you wander around. You may or may not find something real. Be prepared to pay some decent coin too, you won't be finding any discounts and if you are offered a discount be weary. There used to be a place in the Puerto Parisio mall, but iirc it wasn't there last year.