As others have already said in this thread, the perfect detector for every application and every user has yet to be invented. I've often said in talks I have given, none of the manufacturers make a bad detector . . if they did they would either drop the model or go out of business!
With that said, each of us needs to define what we want from a detector . . . what we are looking for, where we are hunting, how complex we are willing to accept, is weight a factor and what our budget is. If someone is looking at getting their 10 year old a detector to hunt local parks and school yards, would I recommend that he buy a Deus? In very cases that might make sense but there are plenty of detectors that will get the job done for less $$.
On the other hand, if someone is looking for a detector that can be used all day, packs into a backpack, is lightening fast in high trash especially iron, has top level performance and can be dialed in to meet almost any situation, then the Deus pulls into the forefront.
Unfortunately I have almost every detector I have owned over the years and space is at a premium as a result of my collecting. Many are collector items but there are others that still go out with me depending on what I am hunting . . . I mean when I go diving I do not take my Deus . . .or when I have hunted the concentrated black sand beaches of the Carolinas, a Sovereign is usually the main detector I swing. Others such as the AT Pro, E-Trac, Velox One, Tejon, Tiger Shark, Excalibur and others come with me based on what I am hunting for.
The Deus comes pretty close to an all around detector with top-shelf performance and based on the type of hunting one does, it may in fact be the only unit you want . . . it has become one of three primary detectors for me but each of us needs to define what the ideal detector is for what we are searching for to decide if the table gets cleaned out when a new model arrives.
Andy