I need an upgrade even more. I'm still using my 2008 MB, the first macbook with the unibody aluminum casing. I upgraded the RAM to 8GB 4 years ago and had to change the battery around the same time. It proved to be a very resilient piece of hardware, even though now I can only use it when plugged as there seems to be something off with the battery that causes it to shut down sporadically.

Last year, I took the decision of waiting another year to upgrade, betting that the 2016 MBPs were probably going to introduce a significant upgrade to the line up, perhaps something of the same magnitude as the aluminum casing in 08. And I'm very disappointed that I was proven wrong...