AITAH for asking my family to help pay for me to visit them?

I moved to California about 10 years ago. My family lives in Pennsylvania. I have flown to see them dozens of times over the years. My best guess is 30 times. I was a flight attendant for 3 years of those years, so the cost of flying was not an issue those times. I’m no longer a FA now and I don’t make a lot of money. I’m trying to save for a house and for retirement. My parents chip in $100 here and there to help with flight costs, which I am very grateful for. And they have flown out to see me 4 times over the years. My 2 brothers have never flown out to see me, but they do have kids now so I partially understand. I don’t have kids. My brothers and their spouses aren’t raking in the money, but they have houses and stable jobs and it’s cheaper in Pennsylvania. I’m just a little jaded because it’s always me using my vacation time and paying most of the way to see my family. I understand I am the one who moved away and therefore paying to see them is my burden, but I honestly don’t think I can keep affording this - especially when I get a house. My idea was for me, my parents, and my brothers to cover the cost for me to see them 3 ways. They seemed like I was out of hand for requesting such an idea.. Am I the asshole?