I think it depends a lot on the scale of what you're trying to do, whether it's worth it or not to invest in OSS/DIY. If you're one person looking to do a "one

I think it depends a lot on the scale of what you're trying to do, whether it's worth it or not to invest in OSS/DIY. If you're one person looking to do a "one off" task like organizing some of your own music, then you're correct that it's probably not worth it to invest time and effort into getting an open source model to do it for you. Just pay $0.50 and be done with it! But if you want to build an app that does that for people, and you want to host it for free/cheap, the costs could add up quickly. And especially if you are a company with a language task that will have lots of users--the up front R&D cost can definitely be worth it to save on costs of usage.