Hi! I am considering purchasing either the base macbook air 13.3 2010 version or the base 13.3 2011 version. My primary uses for this laptop is word processing, web surfing and saving some photos on computer. I do not use a computer to play games nor do I use it for watching movies,etc. Would the base 13.3 2010 macbook air model suit my needs as mentioned above and it will I be able to get three or four years of use on it? I appreciate any input/feedback from the members about which macbook air model I should consider purchasing!