As we move more and more to a greed and market driven life, this sort of thing will happen. Music is of massive benefit to us all, especially the learning of an instrument and playing it with/to others. Finding a way to make music pay is necessary, but as we have seen in many other markets, when the highest quality of carefully hand-produced things is not required, often there is a computer/technology based solution that, whilst poorer in quality, suffices for what's needed.
When composing for adverts, for example, sample libraries with phrases recorded by live players are useful. Actually making a sampler-orchestra sound like a real one, however, is rather difficult. You can mask the differences with non-orchestral sounds (which also leads the listeners ear to regard the whole thing as studio produced, so not to reject the sound as cheap and artificial).
But let us not forget that the value of music can't be measured in dollars or pounds.
