Yea....just because a bud has seeds, doesn't make it any better or worse than if it didn't have seeds. Some of the finest strains in the world are the same with seeds, as without seeds...its just a matter of preference...Most people don't like seeds in their bud, so they see weed with seeds in it, and think its crap. It really doesn't matter.
Its all about Genetics...That seed you have can grow to be exactly like the bud it was in, or it could be better (depending on how its grown....to a certain extent)...or it could be worse.
If it was pollinated with a high quality pollen from a strong male, then it could be better...depending on how you grow it.
But a rule of thumb is that bag-seeds are generally not worth growing unless the bud it was obtained from was of extremely high quality...but even then its a gamble on how it will turn out.
Lets say you have some Lemon Kush plants, that were made with a Lemon Kush male, and Lemon Kush female...If you take one of those plants, and pollinate it with another strain's male plant...or an unknown strain...You would either get a Lemon Kush hybrid with the other strain, or an unknown hybrid.
The end product wouldn't technically be Pure Lemon Kush.
You should read up on genetics...learn your F's...F1, F2, F-cloning, etc...
Cause even a pure Lemon Kush plant...cloned over and over and over, would create an end product that is not as good of quality as the original Pure LK bud.
Whew....Genetics are complexed...