A Competitively Priced Video Wall?

I need some information on building a 'competitively' priced Video Wall for use with some of our IP Camera projects. We have projects that are in the 300+ IP Camera range and the customers prefer a Video Wall concept. We have seen the digital signage guys doing quite a bit of nice stuff with the processors and so forth but not a lot of crossover into the Security camera arena from security Integrator in that respect. We have used the HikVision 96256 and the 96128 with the 6 HDMI outputs with success as a basic wall. I have a couple of the newer models that have 16 outputs as well. I think we are seeking a cutting edge manufacturer of the newer pixel flex screens or similar technology.Has anyone else had any luck in this area? I would like to hear what others are doing on the 'output side' of things. Thank you

We have not installed a ton of video walls but you seem to be aware of the different ways to do this. Using the graphic cards of a workstation and a VMS to that has a UI to drive cameras to these outputs is typically what we have done. Note that if you are trying to take a single graphics output and deliver it to multiple monitors then that brings it to the level of a real video wall in my definition (not just a wall with a bunch of displays). For that you will need a real video wall processor such as what is offered by RGB. Some display manufacturers have built in processors but I have found none of them maintain the native resolution of an image, for example of you had a 4K image being displayed through a graphics card that supported 4K, spreading that image across four monitors would not then provide you with a 4K image. Again, forces you to use a real video wall processor. I have never used the HikVision server with 6 HDMI outputs, don't know how they are accessed from a client, more familiar with Genetec. Genetec supports decoders but I wish someone made a high resoltuion decoder because if it was supproted you could drag and drop camera to said decoders, this is easier then using a workstation running the software to drive a display.