You're descriptions of your legacy computing has brought me back to my hot rod wits. As with the other rustorationhardware and urbanresultvehicles I happily maintain, I will complete the MacBook Pro 17" update to SSD for occasional field work and well, just because I can. But, move onto likely a late 2012 first gen Mac Pro workstation MD770,1, or 2 LL/A to soup up to more than keep up AKA FrankenMac for my work in Adobe CC 2014.
Thanks all for the feed back!