Ok, guys; I have a mid 2009 2.8ghz dual core Macbook Pro with 2 years left of applecare and have been thinking about upgrading to the current quad core i7 2.2ghz model. I don't game nor do any type of video editing. I run an online business from home, and I am also a full time grad student. I use my laptop for convenience only. I usually do most of my work on my iMac. Is there any advantage to upgrading now? I just don't want to hold my current Macbook until it's not worth much on the secondary market. However, it does still have 2 years of warranty left.