Old, Hebrew or First?

Pastor Brian, Tracy and I are feverishly working to complete our lessons for tomorrow night's Old Testament lectures - Part 2. We taught the first seven hours of class last month, and that got us to Ruth. Tomorrow night's classes will finish the rest.
But something is bugging me.
Old and New.
Why do we call the Old Testament "Old?" Not that there's anything particularly wrong with being old. Older means wiser, right? Old means experienced and mature.
Except in our culture.
Old means worn out and finished. Kaput. Retired. Ancient. Outdated. Even Scripture says, "You don't pour new wine into old wineskins." Why? Because things that are old are not useful for moving forward. That's a nice way to put it. A plainer way to say it is that things that are old are useless.
Do I agree that old things are worthless? Heavens no. And not just because I'm getting my first AARP invitation this year.
But in our culture, image, as they say, is everything.
Biblical scholars are fond of a new way of referring to The Old: Hebrew Bible. I like this quite a bit, since it reveres and highlights our Jewish forebears, honors our spiritual ancestors, as well as the religion of our Savior.
The problem with it is that if you sell a Bible with "Hebrew Bible" at the front part, what do you call the other part? "Christian Bible"? No, because the whole thing is the Christian Bible, and then we would be in the same pickle as the Mormon church and have to call it The Book of Christian. Shudder. And if you have a book with Hebrew Bible and New Testament that would be very confusing and beg the question "Why is one part a Bible, and the other part a Testament?"
Instead of Old Testament, why not call it The First Testament? That way your Bibles would say "First Testament" and "New Testament." The First nomenclature would stress that God's initial covenant is not outdated, worn out and worthless; far from it, it would stress that it's prime, preceding the New. Not co-equal with the New but of great importance, since it was first.
The folks who would have the most problem with this is dualists: if you have an Old, you must have a New. If you have Hebrew, you must have Christian. If you have a First, you must have a Last. And nobody wants to read the Last Testament, except greedy heirs.
It's either that, or change American's view toward Old. And that idea is nothing new.