When you build a new site and get it published and online ready to accept traffic, how long do you anticipate it will take for you to break even on that site?

Right now im working on 2 months breakeven on affiliate program paysites, 30 days on in-house paysites and anywhere from 2-5 days for other types of site, including free sites.

Was just wondering if that was similar to other people?

Regards,

Lee