Haha, I love debates like this. Not.
Honestly, I have not bought any custom decks in recent history except for Smoke and Mirrors. Some may be nice looking, some are tacky and ugly. Some are better quality, some are terrible. Some last a little longer, some die quickly. When it comes down to it, it is nice to have these expansive custom decks and all, but rarely are they worth the price, as has been said. I play with Smoke and Mirrors, and even though they are $5 a deck, they will outlast any other deck hands down. They pay for themselves. I will go through 4 or 5 decks of bikes before I even start to worry about one of these decks. I sure as heck can't say that about anything from T11, and even E cards, though they last a little longer, are so expensive that their cost throws any benefit gained from durability.
S&M all the way. They pay for themselves and are the best feeling cards I have ever worked with, even after months of use. Nobody, however, is going to be able to sway anyone else.