That's what i mean, Chewy has no retail stores that I'm aware of and they dont sell any kind of reptiles or animals so their 'stuff' wouldnt come into contact with any said animals if they were sick or had parasites/mites.
If Petco and Petsmart and other chain petshops ship from store, their supplies can come into contact with said animals thus there is a chance of substrate getting 'stuff'. I mean it's a very small chance as i have bought tons of substrate from my local pet shop and Petsmart when i needed something immediately and i have never gotten critters from my substrate.
But anyways, I'm more just agreeing with Craig as i found Chewys stuff cheap, in stock in amounts i need and best of all free 2 day shipping that i actually receive stuff in 2 days.