I tried that route already. I bought 100' of OFC 16 gauge Hitron brand wire from sonicelectronix for $9 (see link below) and when I got it, I was disappointed in the size of the copper compared to some other 16 gauge wire that I already had. I just happen to have a micrometer so I decided to mic it. It mic'ed out at about 0.045" diameter whereas true 16 gauge is supposed to be 0.051". Not a big deal but I am surprised at how much disparity there is in wire thickness within the same gauge wire by different manufacturers. The copper in the $30 monster cable looks twice as thick by comparison.
I also ordered some of the 12 gauge Hitron wire and it was even worse - mic'ed out at about 0.061" instead of 0.081 like it's supposed to be. I am going to return both wires.
I'll try and take pics of both 16 gauge wires side by side and post it tonght. It's pretty dramatic.