Colonies can get out of hand. Mine did.
I tried selling some extras on CL, when that didn't pan out I just culled a bunch. No biggie.
Though I produce way more than I could ever use, I still like having them. It 100% beats hitting up the pet shop for feeders.
The roach guy: http://www.theroachguy.com/
Is fantastic. I use his chow and has good prices on water crystals.