That's Right. The 4 burner has a SS grate/flavorizor bar upgrade for $50 like the previous EP model. It's only available for the 4 burner and at "official" dealers.
Yeah, they seem like less grill for more money. If you want a side burner, you have to go to the LX series which looks like a replacement for the Summit x20.
The Home Depot website has them for pre-order now.
http://www.homedepot.com/c/Weber_Genesis_II
Will there be anything like the "EP" Models? I like the enamel exterior but won't have anything but SS interior. Plus, the SS price premium is quite high on these.