Your perception is correct as to what loops are ... however new releases of BiaB and RB now handle loops with the same engine they use for Realtracks, so they can be pitch shifted, etc, if the correct info is in the file header.
Maybe some people want to tinker with this new feature.

Just realize, as mentioned above, they can be quite limited when compared to realtracks (which have more 'intelligence' built in), and can be just as costly if not more so.


Make your sound your own!
.. I do not work here, but the benefits are still awesome