Basically, I like the blue one. I'd also like to purchase the unit new, and I'd like to be able to know if I could get a blue one from him at anytime, or if the availability of a blue chassis is dependent on the number of units sold.
The first 300 units were blue only, and I believe Berning was only going to offer that color unless those units sold. They did, and he now offers three colors. I don't know what happens when he runs out of one of them...you might have to wait for a new production run to get that color.