I have been seriously thinking about getting a new Mac Mini to replace my aging IMac. I have sort of been waiting for them to show up as refurbs with the SSD drive. Anyway, I found a used 2011 i7 with SSD and a discrete graphics card that looks interesting. My main uses for this computer will be photo editing using Lightroom and photoshop. Would this computer compare favorably with the new model or might it actually be better? Thanks for any advice.