I am looking to purchase either the denon avr688 or the avr788. The 788 is new in box for $399 or I can pick up the display model which hasn't been used just out of box on the 688 for $217. The differences I saw between them are 788 has 85 watts, hdmi audio and on screen display vs the 688 is 75 watts audio through optical cable instead and no on screen display. Is the on screen display a bid issue? The watts and cable are not an issue for me. This receiver will be in a 22x26 room and I tend to not watch movies very loud.
Any thoughts of which is better or a different brand? I'm an occasional movie watcher and don't have video games etc. I have a 52" dlp 1080I with a sony 5 disk dvd player with upscaling to 1080I.