some random reasons why I like vi(m):

:'a,.s/, /^M/g

:set no wrapscan ?def n n n (search hit TOP...)

(see word nice down two lines) t t w w (till cursor is at the word 'nice') ct<space>awesome<esc>

ma /end :'a,.y a $G "ap

%s/\(^[0-9]\)\(.$\)/\2 \1/

:wq