Im on the fence about the update myself, I picked up the mini retina this past weekend so ive had a few days using it. I will say right off the bat i do appreciate small text being much clearer on webpages, I also downloaded an ebook to read and overall satisfied. General speed seems to be slightly faster but I would really have to pay attention to notice any speed differences. Was it worth $500 vs 429 for the first edition 32gb? IDK, If I casually used the mini I wouldve just kept the old one as it worked perfectly fine. Overall I feel like im using my old mini other than having cleaner text, I didnt notice any odd color issues on the retina.