I'm looking to pick up an external monitor for my laptop (late 2013 rMBP), primarily for photo editing. Initially I was going to pick up a 4K monitor, because it's the way of the future regarding displays, and I figure why not future-proof my investment. But upon doing some research, I sadly found out that my laptop can't drive a 4K display at 60hz, only at 30hz, which makes it practically useless. So I then turned my attention to 1440p displays, and am looking at the Dell U2515H and UP2516D. From everything I've read, the U2515H is a great monitor, with 99% sRGB coverage. But the UP2516D is 100% coverage for sRGB and Adobe RGB. I can get the UP2516D for about $100 more than the U2515H, but I'm wondering if it's worth the extra cost? Now I know, people will ask "well do you work in Adobe RGB?". From what I've read, sRGB is better for web, and Adobe RGB is better for print. I do print my images, but the site I've used up to this point for printing says to send the files to them in the sRGB color space. Now that's not to say that I won't change printing companies in the future, and that they will want a file in Adobe RGB instead of sRGB. So, I'm curious as to what people have to say on this. Is it better to pay more to get the wider color gamut display, or should I save the money and stick with the sRGB monitor? As for any MBP users, if I were to get the 4K monitor, could I have it display as a 1440p panel and run it at 60hz? The reason I ask is because it would allow me to get the best of both worlds: I could run the panel as a 1440p display @ 60hz with my current rMBP, but then run it as a 4K display @ 60hz in the future with a computer that could drive it at that refresh rate.