You normally pay for the strain genetics, but this is not always the case, some seed makers (breeders) will always try to charge more on a strain, simply because they seek a larger profit margin than some of their competitors. Also, some breeders have to pay premiums to the original, big name strain breeders, to be able to use the original copyrighted genetics strain name(s).
It's also worth noting that just because you have grade A genetics, it does not always mean your going to get top grade plants. Growing conditions and experience can play a much bigger role in a plants end result than the strain genetics. F.2 hybrids are perfectly ok, and in many cases give the grower more variation of genetics for less money. When breeding marijuana, F.2 and even F.3 hybrids are frequently created in order to discover the full potential of the genetic mix.
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