Different people like different lasers. That's why there are so many different ones. WE are not going to be your customers anyway. WE can buy straight from CNI. What WE think is good may not be what your ultimate customers will want.
Research your market. We are not it. Figure out who you are going to be selling to and ask them these questions.
What are the import regulations in Argentina? Does anybody know? In most countries you can't just go around selling high powered lasers to anybody that wants one. These things are supposed to be regulated.
Nobody here is going to buy a laser from you or your padre, and most people will not spend as much as CNI is going to want in a local store. You should consider 5mW bluray, green, and red lasers. You can buy them cheap on ebay in bulk.
Honestly I think you need to stop asking questions. That's somewhat blunt, but you don't seem to understand what we are trying to say. I guess they call it a language barrier for a reason.