Here's a medium length answer...
Reasons to use cast iron... Mainly Dutch Ovens while camping.
1. There is nothing that can't be prepared in a dutch oven...
2. You can fry, roast, bake food and even make ice cream in a dutch oven...
3. Cast iron is very forgiving... It's quite hard to burn something in a dutch oven.
4. A well seasoned dutch oven will give you the ultimate non stick cooking surface.
5. Easy clean up... Hot water.
6. It's fun to cook with dutch ovens in the outdoors...
7. Food tastes better when cast iron is used...
8. Did I say it was fun?...
I say go and attend a dutch oven potluck at a teardrop gathering or hit a local DOG...
Let's see... How does prime rib, scalloped potatoes, apple vanilla cream cheese cobbler, topped with vanilla ice cream sound???
Or how about Philly cheese steak rolls, or an awesom pizza, or different types of baked breads sound???
ALL WHILE CAMPING!!!
(All of the above are some of my favorites)
Now Phil,
You mention having little cooking experience... NO PROBLEM!!!
Go get yourself a 12" Lodge Camp Dutch Oven and we will get you cooking awesome meals in no time!!!
It's too bad you didn't post your question a bit sooner...
IDOS (International Dutch Oven Society) just had their Fall Convention in La Pine, OR last month...