Well on rodentpro, with shipping, 50 medium rats is about $103... so that's only $2 per rat. I should also mention that I'd likely be looking into younger snakes, since I like the idea of having it grow up with me, so I could get maybe 75 smaller rats shipped out for about $80. So that's just over $1 per rat.

I guess my only real concern with ordering online is how much space they'll take up in the freezer/how long they'll keep.