I have a budget for monthly donations to GiveWell to their Maximum Impact Fund which is X% of my income. This allows me the best balance of doing good with my money and saving for financial goals I have (e.g. house down-payment and FIRE) without feeling like I'm sacrificing one for the other or sacrificing my lifestyle / hobbies.
I recently got into manga. I used to read non-fiction books and definitely prefer physical over digital. However, digital is much cheaper and it doesn't take up space.
I had an idea to purchase physical manga and then sell used after I've read it so that I can donate the proceeds to an effective charity.
But this begs the question: Why not just donate more to charity and keep reading digital?
The problem with that is I have this mental hurdle where I shouldn't donate more than the budget I already committed to. I'd feel guilt because I'd feel like I'm sacrificing my other financial goals.
But for some reason, if I were to purchase manga and then sell it for charity. Then I don't feel guilt. I'd be happy that I'd enjoy manga in it's best form AND donate more to charity that wouldn't have happened otherwise.
Does this logic sound weird to people? Am I doing mental gymnastics to justify purchasing physical manga?
From a consequentialist perspective, I think you're better off sticking to digital — it takes a lot of time to sell things online, and you could be using that time for some combination of work and fun that would leave everyone better off (unless you place a very high value on physical manga).
Low-confidence idea: It might help to find some small ritual/mantra that you can use when you donate (or invest, etc.) the money you would have spent on physical manga — something along the lines of "I'm making the right decision" or "this is better for everyone".