This really is the catch isn't it? It's not really $50 or $70 or whatever the base price is. Like with buying an actual console, the price is only a starting point - most people are going to want at least 2 if not 4 controllers. This could be a point in Natal's favor. No controllers = no purchases needed. So even if the entry price is slightly higher, then you're done.
I hadn't thought of this before. I had the same problem at CES when I was asking vendors about 3D TV. How many pairs of glasses do you get? How much are extra pairs? It's just so impractical for families some times.







