— It looks like that applies to the standard license, but if you purchase the extended license ($49) there aren't any limits. So essentially, just buy the $1 and if you're lucky enough that you're getting close to selling 50,000 copies, then just buy the extended license.
Yeah, I'm thinking too far ahead so I went ahead and purchased the songs I need for the game. Of all the royalty free sites, Jewelbeat seemed to have the best selection at a reasonable price even if you chose extended. The million thing kind of irked me is all.
Once again, thanks to everyone for your help!