There are many switching amplifiers but few digital ones. The few actual digital amplifiers have some limitations. They tend to be load sensitive, much like tube amps. A measurement of voltage across my speaker outputs showed a huge drop in gain at higher frequencies, well within the range of hearing. As a result, some digital designers use analog feedback for control. Others provide user adjustable equalization. I am not a technical person so I am purposely vague. I simply mean to point out that the technology is not mature. It may not be a good value.
Now I own one of these amplifiers and I like it very much, but I suspect that it will be like my computer- a rapidly depreciating asset, unlike my analog stuff which holds it value pretty well.