okay smarty pants, what do you do if you have $5 in LN and the network fee is $10? How do you withdraw?
By the way did you know you can't reiceve funds on LN?
Actually there is this wallet: http://lightning-wallet.com/ where you can receive through LN. I didn't get it to work though - I don't know if I did something wrong.
Reading through that link, my 1st impression as a "LN noob" is that LN is very risky and could lock away money for days.. makes me reluctant to even put in $20 to play around with it.