This is not something I can agree with.
I said: Don't audition anything you are not willing to purchase.
Not the best choice of words, please allow me to re-phrase/explain: I meant price range.
With all due respect -- still disagree.
Listening to gear at all levels can benefit both customer (hears new things they can at least appreciate if not purchase right away) and store (gives customer an aspirational path, builds loyalty).
In most stores I have auditioned and purchased, the store rep auditioned better gear for me. Helped me, helped them.