Everything that was said above is right...
Except the expensive shipping part.. Compared to shipping leos, these guys are really cheap in shipping 
Buying in bulk is much cheaper than buying a little at a time from the petstores.
For example, sila said she get 100 mealies for a couple of bucks - I'm gonna estimate that to be about $2.00 So if you went in a pet store to buy 1,000 mealies (they don't do bulk prices, at least I've never heard of that happening), then you're going to be buying 10 sets of 100 mealies. At $2.00 a pop, that's going to cost you $20.00 total for 1,000 mealies.
Now, go to a mealie breeder - I am going to use www.grubco.com/ as my example here, since they're least expensive breeder (and still excellent). If you wanted to buy 1,000 mealworms, it'll cost you a base price of $5.00 - $15.00 cheaper than the petstore. Of course, I have to add shipping on to that. Shipping will be an extra flat rate of $4.75.
So, for 1,000 mealworms, I'm going to pay $5.00 for the mealies and $4.75 for shipping. That comes out to $9.75 total for 1,000 mealies.
Petstore - 1,000 mealies for $20.00
Breeder - 1,000 mealies for $9.75
You save $10.25 by going to the breeder. I like that savings
And that's WITH shipping. 
Okay, I'm doing Math for day lol
~~Dusty Windom
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So Many Alleles, So Little Time...! 


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~~The Gecko Barn~~