Yea it's very tricky. We have a good relationship with EmuMovies though (at least from out stand point), and they provide a lot more than just Arcade video. This is just one instance where it's hard to tell. With the exception of someone stealing their product, they do have a lot of harder to find video, music and manuals. Not to mention they're set up with an API and they allow us access to it for free. So it's really a lot more than just Arcade video, if that was the case we would have offered it up already more than likely.
It is certainly a tricky spot we've been put in. We simply don't have access to their download numbers and bandwidth per month, but we guess that's why there are restrictions. We would, in the end, love to offer it all for free and sure the other free sources would probably not mind another server to off set the load. However, as we grow we have no clue what our projected monthly bandwidth will be and we don't want to have to charge for that too if it were to get out of hand.