I just purchased a 21.5 in iMac. The one for 1299. Love it so far. Fast and a good amount of memory, and its able to handle a couple games i play on it. However, I am reading that there is a possible refresh of the 21.5 inch model coming soon? Should I have waited? I really dont need the 5K display, thats why I went with the non retina model. Any comments?