Before revision: From a user's perspective, a (greatly) simplified viewpoint may be that developers who want the most complete and most targeted capabilities for a single bus architecture may be best served with a bus analyzer, while users who work with several protocols in parallel my be better served with a Logic Analyzer that is less costly than several different bus analyzers and enables them to learn a single user interface vs several.
After revision: From a user's perspective, a (greatly) simplified viewpoint may be that developers who want the most complete and most targeted capabilities for a single bus architecture may be best served with a bus analyzer, while users who work with several protocols in parallel may be better served with a Logic Analyzer that is less costly than several different bus analyzers and enables them to learn a single user interface vs several.