Hi - I'm a photographer and do a lot of work in Lightroom. I purchased a 5K iMac back when it was released and ended up returning it due to disappointing light bleed and UI lag. Now I'm reconsidering. I'm getting married and I'm giving my fiancé my 2014 rMBP (which I have been using up until now). When I make my purchasing decisions, I always weigh in what will have the best resalability (not sure if that's a word). I like to always make a decent profit selling my old machine. I tend to refresh somewhat after Apple Care expires. Now that it's been a few months since release, there's some decent deals on 5K refurbs in the Apple store. However, I'm not sure if I may be better off just getting another 2014 rMBP and then selling that when a refreshed 5K is released. The rMBP gets the job done, it's a little slow but not unbearable. Or, I can get a 5K and when the refresh happens, I can decide whether it's worth updating or not. Any thoughts?