Can you buy a Starship?

I'm curious, is it even possible to purchase a Starship? I mean, we're talking about intergalactic travel here, it seems like something that would be out of reach for most people. But with the advancements in technology and the growing interest in space exploration, I can't help but wonder if it's become a reality. Do you know of any companies or organizations that offer the opportunity to buy a Starship? Or is this still something that's only available to governments and large corporations?