It's about the snake's preference and my feasibility.

My snakes prefer live. And I can't feasibly buy and store FT in bulk. I've have to buy a separate freezer that I can't afford nor do I have room for. I do, however, have an arrangement with a local pet store the buy rats and mice at wholesale price that all of my snakes with gladly eat when they are hungry. What little is refused can be put in a holding tank for the week or taken back to store for them to resale.

It benefits me financially to feed live right now.