Too funny. On Christmas eve, my spinner wheel on my TV decided to die. Normally, I would just buy the part and fix it, but it's an older TV *and* I had a Wii U waiting for my kids on Christmas day. So I ran out and got a new TV. And since my Denon 3808 can't use ARC, I can't use my PS3 to check out the 3D capabilities. Well, not w/o losing HD audio, anyway.
Long story short, I asked my family if they were interested in 3d content (of course the kids said "yes!"). So I'll likely order the BDP's network BD player. It can split video and audio so I'll still get some years out of my 3808.
I was thinking about grabbing the new 4520 model, but I'll likely skip one more generation.
Denon 4520, EPIC80/500/VP180 Speakers