Can't wait for steam to let me sell my music while taking 75% of the money earned because they're handling distribution. Oh no wait, I can sell it on several other marketplaces that offer far better compensation. Or I could sell it on my own website and keep 100% of the money. Too bad that doesn't exist for videogames anymore.
I have bad news for you about music royalties . . . It's much less than 25%. Good luck selling much on your own as well.