I've seen a few questions like this on here, but wanted to get some specific advice. I have a mid-2009 15" MacBook Pro and am contemplating whether to replace it with the new 2014 Retina MacBook Pros. It's been good to me -- partially because I've been good to it in replacing or upgrading parts -- but I'm curious how much longer people think it can last as a viable machine. Full specs below: Mid-2009 15" MacBook Pro 2.66 GHz Intel Core 2 Duo 8 GB 1067 MHz DDR3 (UPGRADED from Crucial) NVIDIA GeForce 9400M 256 MB 1 TB SATA SSHD (recently UPGRADED from Seagate) Brand new hard drive connection cable installed recently If you think it's possible it could last another 9 months or so until Apple's next rMBPs come out, how significant is that upgrade expected to be? New form factor or just speed bumps? If you think I should upgrade now, thoughts on what I could get for my current computer on eBay? It's in pretty good physical shape except for some screws missing on the bottom. Let me know thoughts on upgrading now (with back-to-school special savings!) or whether I should wait. Any other information that would be helpful to have? Thanks!