Oh, lol. wait that shit is expensive online and all, but mine was also factoring in the reused coco, too. Regardless. I do not use perlite, and will not start. Happy you're happy with it. My newest batch of seedlings are vibing just fine in new coco.$150 !? I get it in 15# bags and it's not anywhere close to that. You know how much perlite it takes to make 15#........a whole freaking lot lol