I don’t know about regular auto seeds , but I bought feminized seeds from speedrun . Spent 200 bucks and got 55-60 total
I ordered 20 or 25 mystery seeds “can’t remember exactly “ , 3x of froot fuel , god particle , acid snow , I received 5x of each I ordered - plus 5x of grand exchange “freebie” and 10 extra mystery seeds .
I basically got over 20 seeds for free on my 200 dollar order .
you could always buy a single strain , and colloidal silver - space the germination put a week and spray one to force it to herm and pollinate the other. You’d have a pile of feminized seeds of that breeder / strain .