Ebay is used both for selling second hand and brand new things. - The sellers on ebay sell them - Because you have payment protection from Paypal. If you dont receive your item, then you get your money back. Also, sellers have a reputation and feedback system so you can see their track record doing business - Yes it is safe. By mini laptop I assume you mean netbook.
yes I'm sorry because I was just learning the business name online,,,, so they all learn from the beginning