Hi, Around this time last year, I purchased the base model Mac Mini (2GB Ram, 2.3 Ghz i5, Intel HD 3000). I'm now curious if I should upgrade to Mountain Lion. For a $20 price point, it seems like a great deal, but speed and smoothness wise, I don't know if it worth it..... Please give me feedback on this... This is my first new mac since the G4 PowerPC Sunflower iMac in 04'.