Yes, but I think it's safe to say that there were a lot more original movies a few decades ago than there are now. Hollywood used to take more risks.
>According to Wikipedia, Aladdin grossed "$923.7 million, against a production budget of $183 million". So despite you and your nephew, Disney seem to manage OK.
Exactly. People are bemoaning the current state of Hollywood, but it's extremely profitable, and that's all that really matters to them. There's no shortage of paying customers willing to see the latest sequel/prequel/remake/reboot. Sure, they might lose a few ticket sales from people like me and this OP and his nephew, but it's more than made up for by countless others who just don't care and want entertainment. And yes, they might make more profit on a really great original movie (like the original Star Wars in 1977), but that's also a big risk and it might flop and be a giant loss, so they tend to shy away from such things now and make safer movies that have an almost guaranteed profit, even if it isn't as much.