I only have my one girl, and in the situation I'm in living-wise, I don't see myself getting many more, so f/t works for me right now- it's less then two dollars for the two small mice I get every week and they don't take a ton of freezer space.
I personally don't like feeding live because constriction is a terrible way to go and not very humane, and with a bigger prey animal, there is a risk (even slight) of something going wrong and MY animal getting hurt... which is a silly vet bill to get IMO. If that's the only way the snake eats, it's the way the snake eats and I'll do it, but if I have the choice I'd probably go for an animal that's already on f/t. It may not be 'natural' but... my snake lives in 10L with an Iron Man background, a dragon head hide and plastic plants with me controlling her heat and humidity. There's nothing about her situation that is 'natural'.