Both parts of your post I can only answer with: yes and the secret is in the provided sound files...if a person doesn`t know the song a soundtrack will not only create his/her interest it will also help to get the bids high...seen this all before, haven `t we.
See start of this thread, the tune was "unknown" but provided with a soundfile "will this be the next big thing ?" was the question born out of the fact it was "unknwon" and the soundfile (at least to the person who started this thread) sounded good enough to ask this particular question.
There will always be people who once bought it before way cheaper as well as there will always be people who will say "this is crap, the worst 45 I have ever heard bla bla bla etc." Same was with the Parliaments "This Is My Rainy Day" first copies really cheap and later some said "Ah, can`t understand all the fuzz, ain`t really such a great tune"
Each to their own.
I for myself like it big style
Marc