and how many Blitzers have sold more than 5000 copies of a single game? For over 5000 copies you're talking $0.50 per copy.
Counting demos as 'distributed copies', at a conversion rate of 1% you'd only actually be able to sell 50 copies before you needed to pay.But yeah, OGG is a much better format. Especially VBR-OGG which are amazingly small.