[crazycanuck]

But the E in P/E is earnings not sales, so this estimate is way too high. Better guess: start with 1x sales and adjust up or down based on how fast it's growing and how profitable you think they are. As far as public/private, if you haircut public company multiples by 10-15% you wouldn't be too far off.

[Anechoic]

Oops, yup you're correct. Every outside analysis seems to indicate that they're incredibly profitable (there retail products have pretty dramatic markups) so the earnings gotta be in the $100s of millions at minimum.