This is a good approach. I think my urge comes from several areas.
1. Not feeling like I've done enough re: education. There's always a feeling that I need to have a graduate degree to gain some level of knowledge I can't self-study, to gain a network that might be closed to me without the credential, to feel like I tried harder.
And if I'm being honest, it's partially my ego that is driving this, ie: I want a degree from a top school just to know I was able to do it to not continue to have this regret lingering in the back of my mind.
2. I want to create. Your approach is great. I want to be more of a builder that way I can combine my marketing skills with building products.
3. I feel like I'm not accomplishing enough. So what are the levers I can pull to accelerate this? It seems like a graduate degree and a complementary skill set like coding would satisfy this itch.