There's no way I'd trade the feature set of that Yamaha.

Add an external amp if you play content very loud, and/or in a large room, and/or just want an amp.

I added a 200wpc Emotiva XPA-3 to my 130wpc Onkyo TX-SR805 and the extra blue LEDs are pretty. But I can't convince myself I can hear a difference.

Obviously, Yamaha and Onkyo may have fundamentally different amps, so YMMV.

bibere usque ad hilaritatem