Ok, let's get one thing straight. The overall quality of the old 2009 lines were crap indeed, iOne managed to make lots and lots of faulty units of the Razer Blackwidow and Razer Blackwidow Ultimate and even if it wasn't faulty it was still bad, that's true and undeniable. And at the same time, people, especially Razer fanboys, would defend such keyboards over the course of years and years, making it seem like a holy grail of Mechanical Keyboards be it 2009, 2010, 2011 and 2012. And at the same time, of course, people who knew stuff about keyboards would get mad at them.
But, things got changed when the Razer Blackwidow 2013 and Tournament lines, when Razer
did replaced their OEM. Now, before we get to bashing and stuff, take a look at this soldering job on a Razer Blackwidow Tournament:

I don't see any slacking there, soldering looks as it should, shiny, no excess nor lack. Just as it should look on any good electronic equipment. Hell, it looks better than the PCB of my CM Quick Fire Rapid.
So... There aren't many reasons as why to avoid Razer, besides price, keycaps and modifiers. But since gamers don't even care about that...