Leaving my parents

We live on the east coast about 20 minutes from my parents. I am super close to my mom. She was there for me through all 3 pregnancies, took great care of me and my babies after they were born, and has consistently been there for us pretty much every weekend. She's my best friend, and honestly, I think she cares about me on a deeper level than anyone. She's almost 66 and in decent health.

My husband has always dreamed of moving to California. He wants to raise our kids there, and just loves everything about it. We know it's expensive but we could afford a comfortable life if we found comparable jobs.

We may have an opportunity to move there soon, but I feel so guilty about moving because I don't want to leave my mom. But I also understand that I'm married, and what my husband wants in life is equally important as what I want.

I don't really where I'm going with this, I guess just hoping for some perspective, advice, helpful anecdotes. I feel sad.