I am looking into getting a monitor for my rMBP 15 inch (early 2015). I am leaning towards the Dell P2715Q and the LG Ultrafine 5k. The Dell seems like a great choice overall as it is the screen size I am looking for and it is at a great price. The only downside is that I prefer glossy screens, but I don't mind a matte screen. Overall, I really like the LG Ultrafine after seeing them in person at the Apple Store *but* my rMBP does not support 5k so I will only be seeing it at 4k. But would this still be a better choice to the Dell? I have a very comparable price (around $700) so it is not a bad deal.