I guess my next question would be: What separates AP from the others? Why are people willing to shell out the cash and sometimes wait months for AP when there are many other options? Not to mention it's a fairly simple DIY project if you know what you're doing. What features are on the AP that aren't on others?
I'm leaning towards building my own, but am not 100% yet. So I'm curious what makes AP stand out in the crowd?