Sure, I like the idea of having the option to spend the money on your room, or for the DIK mansion as an option. I think that could be a good option. I also like the thought of being able to spend it to help renovate your dad's home, which I understand as one of the MC's lifelong goals. And that would be a very satisfying way to spend it giving something to your father. I would be surprised if, at least, not one of those two options is available to us as players.
The question I have about some of your other options, and some realistic options is game implementation. DPC clearly gives the money to the MC in order that he can use it in some fashion. Something like paying student loans or saving it for the future, while fantastic options in real life would seem pointless in the game implementation, other than simply as an at the end of the game one off image, with a kind of byline of how saving the money or using it wisely gave you a great opportunity going ahead. Also given the nature of the game, a car seems non-functional for the way DPC has designed the game. It doesn't really serve the story in any significant way that I can see. Maybe you think I am missing something?
I am not opposed to having multiple ways of spending the money - I would love to have as many options as possible. Realistically, I think our options will be - 1. Maya, 2. Quinn, 3. DIK repairs (always important to do this), or 4. Fixing up your dad's place. Given the nature of the game I can't really think of any other practical use, but as I said above I might have missed something.
