Same question as OP here. I can get a refurb 809 for a lot less. I don't really care about Audyssey XT vs 32, should be enough for my needs, considering I was happy with my recently deceased HK AVR635's EzSet EQ. I only run 5.1 with 4 ohm Polk LSi15 mains, and 4 ohm M&K center/surrounds. Sub is 10" Velodyne. The HK was really musical, but I killed it trying to change the memory capacitor

! It now locks itself up every few minutes. After power cycle, comes back on and repeats.
Anyway, what does the board think about 809 vs 818 for my needs? The refurb 809 has one year manufacturer warranty, and my Amex will add one year also (confirmed with amex). I don't care about any network features as I run an HTPC. Don't care about zones 2/3 etc, only play in one room. I looked at the denon 3312 as well (same price range as 809 for a refurb). To my ear, for whatever reason, the 809 sounded better on same speakers. Also, bench tests online indicate a few more Watts for the onkyos, which would be helpful for my 4 ohm speakers.
Have all HDMI problems been solved on the onkyos? Don't want any repair issues again after my HK's memory issues, power off issues etc..