I buy 2000 crickets every month in a half to two months.
And sometimes I buy locally if I run out.
But I have 2 chams.
I also bought bulk when i only had one.
Now what i do, is buy them smaller than what they should be eating.
This way, the crickets wont get too big for my boys before i can feed off.
I buy young ones, and 5 week olds, but i have a baby hoehnelli and a 11 month old veiled.
I mean, the chirping happens when the crickets get to adult. but then they start to breed, and honestly, with the cham room door shut, you can hear them unless you stand with your ear to the door.
I found that buying from mulberry farms, (a site sponsor) I didnt have die off, cept from old age.
Local crickets die alot faster, and never reach adult size for me.