For F/T we get them from Mice Direct. For the ones that needed live, we got them from petstores and expos.

However I plan on starting my own ASF colony this week for the same reasons we have our B. Dubia colonies for the geckos.

Ethics, I refuse to support vendors and petstores that have animals in crappy conditions. It is only a last resort that I use them for live feeders, and since I will now be completely self sufficient I will never walk into another again. Also, always having appropriate sized feeders for the BPs on hand. I have ended up in some tricky situations that made me sweat for both feeder and BP alike this last year. Snakes that are fed appropriate sized meals have scales thick enough to deal with appropriately sized rodent bites. Feeders that are smaller die faster from a stronger more all encompassing blood choke leading to faster cardiac arrest.

Cost, far cheaper to produce my own feeders over time with a collection of reptiles that is doubling in size yearly.

Availability, plenty of times I simply can't find the numbers of live feeders I need, or the sizes.