Randy, I don't want to go too far afield, but claiming that as Fair Use would be an uphill battle in the instance of an actual copyright suit. See specifically point #4 on your link, Effect of the use upon the potential market for or value of the copyrighted work. The copy is negating the potential sale of the work (regardless of your ability to buy it financially).
You are correct in that everyone does it to some degree and also yes, it hardly matters and likely no one would sue you for it. But it still likely would not fall under Fair Use. This is a sticky wicket and at the end of the day, the only real determinant of "Fair Use" is in the court of law, so my opinion has little relevance anyway (nor does yours or anyone else here). Ethics are a different matter altogether.
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