A price as low as literally free can mean the economic equivalent of a free kitten -- I may get a free kitten, but then I have to deal with the consequences, with no exit strategy.
Jill B. told me about these two poems her father, Chippy Armstrong, used to quote:
A man is not old when his hair turns grey A man is not old when his teeth decay But a man is ready for his last long sleep When his mind makes appointments, his body can't keep.
I burn my candle at both ends It scarce can last the night But oh my foes and oh my friends It makes a lovely light.