I love nachos so much! They are the best!
I love nachos too! The originate from a place close to where I used to live in Texas, Piedras Negras. 
I think I heard about that some where like around Laredo.  Are nachos made different depending on the region?
I'm not sure how much they vary across regions but I know that when the first were made, they were just fried corn tortillas covered in melted cheese. 
Are nachos considered to be an appetizer or a meal in your opinion?
The are considered an appetizer, called "antojitos" in spanish which means little cravings. 
Do you think it is customary to put jalapenos on them?
Yes, the original nachos had jalapenos on them, and of course like most of their dishes, included corn. 
I noticed that ballpark nachos seem to have that fake cheese cause on them.  Would you consider those nachos?
Well I think they may be since nachos can be covered with cheese or a cheese based sauce.