Thanks everyone for the clarification...
The Denon AVR-x4200 and Marantz SR6010 were on my short list also... I narrowed it down to he Yamaha & Onkyo because they were Sound & Vision Top Picks. But you make an excellent point on the room correction software.
I saw recommendations for Accessories4less on AVSForum as well.
Perhaps, before you make your choice, there is another item you might
want to consider. The Yamaha Aventage series has a better warranty than any of the others. FOUR years as opposed to two or maybe three with any of the other brands.