This might be a very controversial thing to ask or discuss so please lock if this is going to get out of hand... but what do breeders and collectors do with all of their "leftover" spiders? I highly doubt anyone has time to individually house and feed hundreds or thousands of little guys when an egg sac hatches. I've also seen people recommend getting 5 slings to have a really good chance at getting at least one of a desired gender. Do these people just get stuck with 4 unwanted spiders? Surely there's only so many other collectors to sell or trade with? I understand collections of a dozen or two dozen different spiders but I don't think anybody wants an extra four of the same species of the wrong gender or whatever..