To look for the best price for the right part, checking if it delivers to the country, etc. Plus, from what I've seen most stores have more system bricks than anything else, and the parts that are their on that persons store may be very different from what he needs. So I can understand dozens. It really is quite rude to bash on a great deal of hard work. Constructive criticism is one thing, but what you are doing is criticizing every little detail, for no reason other than bootleg and glued parts.