The other night I thought maybe it was time for a replacement part. I ended up switching out the AR5BXB72 that came with it for a BCM94321MC. Strangely, they came out the same year. The AR5BXB72 that came with the laptop had three connectors while the BCM94321MC that I ordered had only two connectors. At first I thought it would not work but I just connected the two antennae on the left (black and grey), and left blue unconnected.
For 14.95 and an hours worth of work I solved the issue. Strangely, the replacement part has two antennae connectors instead of three but it still gets wireless N and never goes out. Its basically a miracle for a machine I thought was trash. I got the idea from this mac support page where someone else had success with the same thing:

Clearly the part needed replacement. It smelled like melted plastic in the worst way possible. I think its time to write an email to apple.
Its like a resurrection for the television.
This is the original AR5BXB72

This is the the new BCM94321MC

You got some pretty cool pix...