I think that's a consideration for a lot of people here. And this is not the case with wrapbootstrap.com.
(edit)
I originally said Themeforest had the same restrictions as BootstrapBay, but it appears they have changed their license description significantly and it only affects you if you're distributing it in a sold product. But don't take my word for it:
Sorry, I was wrong about Themeforest (or originally correct) - if the end user of the site pays to access it, an "extended license" is required, also at 50X the cost. As that's often $2500-3000, I'd rather find a good free theme and pay a designer/UI person (perhaps the one who created it) to customize it for me or my client.
http://bootstrapbay.com/licenses
I think that's a consideration for a lot of people here. And this is not the case with wrapbootstrap.com.
(edit) I originally said Themeforest had the same restrictions as BootstrapBay, but it appears they have changed their license description significantly and it only affects you if you're distributing it in a sold product. But don't take my word for it:
http://themeforest.net/licenses/regular