Rico11 --- why do you say, 'marginal smokes?'
These 'Big Smokes' are mainly held to promote all the new lines of cigars that the vendors who participate have come out with ...
... they may not be worth the cost of the ticket, but I would hardly call them marginal (well, maybe a few of them ... LOL!).
But IMHO (and never having attended, only heard from many who have) ... these things are nothing more than a 'cattle call' as you are 'herded' from one vendor to the next ...