when I read that the first time, I agreed, but now I dont so much. they arent necessarily as rigid as they could be, but if you look at the saddle, thats not any better even if it is as good. Basicly I dont think its an issue, even though it doesnt look too rigid, its probably not the weakest point.
I would have liked to see the handwheel stationary like a normal machine though.
I too am looking into buying one in about a month, mostly for manual opperation.. or at least till I find some brushless drives for my bushless servos.