For people that do not have existing wired LAN's or who are not network savy or who are just more comfortable with a completely D supported configuration by all means have DECA installed. But for people who do already have well functioning wired LAN's, who are network savy, and don't really want D contactors/installers touching their equipment/installations anyway I disagree with your statements. Reasons not to go DECA: Don't want to pay D the additional expense Don't want the extra equipment Don't want the additional complexity Don't want another network I could go on but you get the idea... So while the reasons not to have DECA installed are real TODAY the downside is only possible/theoretical sometime possibly in the future. As I mentioned before, even D's chief technologist basically admitted that the reason they went with DECA is for ease of installation and support rather than any current deficiencies in modern wired LAN technology.