I disagree that the space between "but" and the ellipsis is a mistake, and the first citation I found (http://grammar.ccc.commnet.edu/grammar/marks/ellipsis.htm

I disagree that the space between "but" and the ellipsis is a mistake, and the first citation I found (http://grammar.ccc.commnet.edu/grammar/marks/ellipsis.htm http://grammar.ccc.commnet.edu/grammar/marks/ellipsis.htm) supports me. However, lest anyone think I think I'm perfect, I'll point out that I omitted the period after "etc".