I think the point is it's about you, your budget, and how you feel about the car, not about the actual dollars. It seems to me you already knew that on straight finance, it doesn't make any sense to do what you're considering, or you wouldn't have asked the question here, and it's not surprising that the answers say it's not worth it. But I just bought a $70 tote bag that my husband would consider a stupid purchase (if I told him about it :-)) while I think it was well worth it - because it makes me feel good.
If this is the car you love... what is that feeling of "I LOVE this car!" as you walk toward it every day worth to you? If it's worth 20-25 grand over three years and you can afford it while still feeding your (hypothetical) children and you can't get the feeling any other way, go for it.