Actually "smoking a cigar" is not a good way to tell a genuine from a counterfeit. From flavor, color, rolling technique and the cap you can only tell a cuban cigar from a non-cuban cigar.
It is not necessarily by smoking it alone that you can tell a genuine, say, Cohiba cigar from a counterfeit Cohiba. Particularly as cuban fakes are actually rolled out of cuba itself so the cigar looks good, tastes right, smokes ok: it's made in Cuba with Cuban tobacco but it's not necessarily a genuine Cohiba.
Those counterfeits often have original bands and come in original boxes too. Why else would Habanos SA go through such great lenghts as to serialize and register their products? Because there are tons of fraudolent products that are so close to the genuines that smoking one, looking at its band, or its box, is just not enough any more.
I would really like to know what those security reasons are. What is more important than guaranteeing the product?