For me, keyboards are more like a tool. Sure, the aesthetics come into play, but it doesn't matter as much. The fact is, I need to be as productive as possible, and I can't do it without the arrow keys. I need to know that when I'm typing I'm in full control, so I can hum away without even thinking about it.
I too once owned an HHKB, but I just couldn't justify keeping it, especially at its price. The FC660C gives me everything I need and then some, at a lower price point.