Consider defining or showing a few examples on the landing page describing exactly what a "buy-it-for-life" item is.

I'm not sure if you mean items I'll be buying until death (like soap, toothpaste, and socks), or things I buy once and expect them to last for a lifetime.

I see the "ZSA - Moonlander" example, but I'm unsure how to interpret what I'm seeing: "Hours" means how long I've had this particular item? And for what I paid for it, "Cost per hour" is just that.

Congratulations on the launch!