tbh, I think this is one of the failings of the BIBA "pak" system. One is forced to buy a lot of superfluous material.
Not sure how possible this is, but why not have a Real Tracks sale library where a user can buy individual RT's - $5 each or similar....its probs too difficult to implement but I think it might make it far more flexible.
anyhoo, moving on
Well, the price of the whole pak is $ 29,00.
You can buy only the Country, Jazz, Rock/Pop and Americana separately for $ 15,00 each. If you only need two of them, say, Jazz end Americana, you end up paying MORE for half the pak as for the whole pak. I only see win in getting the pak as-is, not fail at all.
Is this a case of seeing the glass half-full or half-empty?

HTH,