I just prefer to get the seeds in breeder packs. I would rather pay a couple of dollars more to know where the seeds come from. Or at least have a better idea as to where they came from.
Refilling breeder packs would be an expensive way to go. You would have to buy tons of breeder seeds first, and I doubt it would be worth the time or the money. Also, the printing of breeder packs is a bit unreasonable as well. I suppose it could happen, but I doubt it. But sending any old seeds with out any breeder packs, without mentioning what seed banks they come from, etc, just seems like an easy way to send out garbage seeds.
I am pretty sure that when I order from Nirvana, I am getting Nirvana seeds. I am pretty sure that when I order from HGS, I am getting what I ordered. Ordering from a company that desn't even tell you what breeder the stock comes from just doesn't seem like a good idea. Plus, if you look at the prices, if they are Nirvana strains like a lot of them look like they are, you save like $5 after shipping, so you may as well order straight from the breeder.