It is hard to tell without good knowledge of the capabilities of you other components. I'll try to be helpful nonetheless.
There are AVRs that have ABT technology onboard (same deinterlacing and upscaling quality as the DVDO unit). I believe this is also true fom some upscaling DVD/blu-ray players. Was not there an Oppo that uses the same ABT chip as in the EDGE?
If you get such AVR, an EDGE would not yield any gain for scaling or deinterlacing.
Therefore, you should look which features an EDGE would offer that the AVR lacks (it is not b/c an AVR uses ABT-tech, it implements all possible features).
I'll list the one I use to give you an idea:
- Test patterns. They are quite useful if you venture into calibration. Do note EDGE lacks a CMS and thus you will not be able to calibrate that aspect of PQ.
- Auto-switching of video sources.
- An info screen showing color space, resolution and refresh rate info (amongst others). I like this screen to double check sources are playing nice.
- You can force color spaces/colorimetry and set cadence detection if you notice the EDGE can't figure it out on its own.
- You get their proprietary noise reduction and sharpness tools (which I actually turn down instead of up
- You can set audio delay when audio and video are out of sync (lifesaver once and a while).
Review their manual
, it should give you a good idea what EDGE is capable off.
TBH, I think you are better off with a quality AVR. My EDGE has failed 3 times already, and my brother's one has failed 1 time. I hope the EDGE green is a better device, but they seem to have cut some more in costs. The remote looks very cheap now and the front HDMI port (useful for a quick source connect without having to venture to the rear of the unit) is gone.
If you do want a VP, a least get one with a CMS (unless your display device has one included).
I'll be happy to answer any EDGE related questions you may have if you are looking to get specific questions answered.
For the record:
I own a very cheap suround system, and poured my money into the video part of the story. So I did not require an AVR and just bought the EDGE. Since my display only has 1 DVI input (it is a commercial Panny panel) I kind of needed a device like the EDGE. If I were to have had more money, I would have bought an AVR.
If I were loaded, I'd go with a Lumagen and a pre amp + amp.