I tend to agree. The willy-nilly agglomeration of '-wise' onto any noun is a wretched, semi-literate crutch that should be beaten out of the offender, upside-the-head-wise.

On a similar note, is it 'sideways' or 'sidewise' where you live? I've heard both in various regions of the US, and am unsure if this is legitimate regional variation or simply course of least effort, word-wise.