My problem with Elan, C4, and any other "automation in a box" systems is that when the keypads start looking dated or are not up to current client wants / needs, the entire system has to be replaced.

I have always found it more effective, flexible, and efficient to use a control system with various control locations paired with the necessary hardware. Be it AV matrix, cameras, amps, lighting, etc. It allows you to use the best of the crop for each component. Just a better approach. Problem is guys constantly under bid by bidding this stuff that seems as powerful on demo but simply doesnt have the staying power.