I think manufacturers are in a quandary about how high a quality remote to provide, and how closely the remote should match the look and feel of the host unit.
They take away design and engineering focus from the unit itself, where most of the quality and product differentiation should be occurring anyway.
Custom remotes are expensive to design and build, when most of the internals and controls are standardized anyway.
I think in a few years, some manufacturers will stop providing remotes all together, and in their place, provide smartphone and tablet apps.